CFR-2012-title46-vol2-chapI-subchapF.pdf

SUBCHAPTER F—MARINE ENGINEERING

PART 50—GENERAL PROVISIONS

Subpart 50.01—Basis and Purpose of Regulations

Sec.

50.01–10 Purpose of regulations.

50.01–15 Scope of regulations.

50.01–20 OMB control numbers assigned pur-suant to the Paperwork Reduction Act.

Subpart 50.05—Application

50.05–1 General.

50.05–5 Existing boilers, pressure vessels or piping systems.

50.05–10 Alterations or repairs.

50.05–15 Vessels subject to regulations in this subchapter.

50.05–20 Steam-propelled motorboats.

Subpart 50.10—Definition of Terms Used in This Subchapter

50.10–1 Commandant.

50.10–5 Coast Guard District Commander or

District Commander.

50.10–10 Officer in Charge, Marine Inspec-tion, (OCMI).

50.10–15 Marine inspector or inspector.

50.10–20 Headquarters.

50.10–23 Marine Safety Center.

50.10–25 Coast Guard Symbol.

50.10–30 Coast Guard number.

50.10–35 Constructed.

Subpart 50.20—Plan Submittal and Approval

50.20–1 General.

50.20–5 Procedures for submittal of plans.

50.20–10 Number of copies of plans required.

50.20–15 Previously approved plans.

50.20–25 Calculations.

50.20–30 Alternative materials or methods of construction.

50.20–33 [Reserved] 50.20–35 Marine inspector’s decisions.

50.20–40 Right of appeal.

Subpart 50.25—Acceptance of Material and Piping Components

50.25–1 General.

50.25–3 Manufacturer or mill certification.

50.25–5 Products requiring manufacturer or mill certification.

50.25–7 Testing of products required to be certified in presence of marine inspector.

50.25–10 Acceptance of piping components by specific letter or approved plan.

Subpart 50.30—Fabrication Inspection

50.30–1 Scope.

50.30–10 Class I, I-L and II-L pressure ves-sels.

50.30–15 Class II pressure vessels.

50.30–20 Class III pressure vessels.

AUTHORITY: 43 U.S.C. 1333; 46 U.S.C. 3306,

3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980

Comp., p. 277; Department of Homeland Secu-rity Delegation No. 0170.1; Section 50.01–20 also issued under the authority of 44 U.S.C.

3507.

SOURCE: CGFR 68–82, 33 FR 18808, Dec. 18, 1968, unless otherwise noted.

Subpart 50.01—Basis and Purpose of Regulations

§ 50.01–10 Purpose of regulations.

(a) The purpose of the regulations in this subchapter is to set forth min-imum requirements for marine engi-neering details for various types of ves-sels in accordance with the intent of title 52 of the Revised Statutes and acts amendatory thereof or supple-mental thereto as well as to implement various international conventions for safety of life at sea and other treaties, which contain requirements affecting marine engineering. The regulations in this subchapter have the force of law.

(b) All marine engineering details, such as boilers, pressure vessels, main and auxiliary machinery, piping, valves, and fittings, shall be designed, constructed, and installed in accord-ance with the provisions of this sub-chapter, except when specifically modi-fied by the regulations in another sub-chapter in this chapter for a particular type of vessel or where a specific in-stallation may be required or per-mitted.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, CGD 95–012, 60 FR 48049, Sept. 18, 1995]

§ 50.01–15 Scope of regulations.

(a) This subchapter provides the spec-ifications, standards and requirements for strength and adequacy of design, construction, installation, inspection, and choice of materials for machinery, boilers, pressure vessels, safety valves, VerDate Mar<15>2010 10:19 Dec 04, 2012 Jkt 226197 PO 00000 Frm 00110 Fmt 8010 Sfmt 8010 Y:\SGML\226197.XXX 226197er ow e on

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Coast Guard, Dept. of Homeland Security § 50.05–5 and piping systems upon which safety of life is dependent.

(b) Since this subchapter contains the marine engineering details, it im-plements the requirements for inspec-tion and certification of vessels as set forth in other subchapters for specific types of vessels.

§ 50.01–20 OMB control numbers as-signed pursuant to the Paperwork Reduction Act.

(a) Purpose. This section collects and displays the control numbers assigned to information collection and record-keeping requirements in this sub-chapter by the Office of Management and Budget (OMB) pursuant to the Pa-perwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). The Coast Guard intends that this section comply with the requirements of 44 U.S.C. 3507(f) which requires that agencies display a current control number assigned by the Director of the OMB for each approved agency information collection require-ment.

(b) Display.

46 CFR Part or Section where Identified or Described

Current OMB Control No.

Parts 50 through 64 ....................................... 1625–0097

[49 FR 38120, Sept. 27, 1984, as amended by CGD 88–072, 53 FR 34297, Sept. 6, 1988; USCG– 2004–18884, 69 FR 58345, Sept. 30, 2004]

Subpart 50.05—Application

§ 50.05–1 General.

(a) The regulations in this sub-chapter shall apply to the marine engi-neering details of installations on ves-sels required to be inspected and cer-tificated under other subchapters in this chapter as described in § 50.01–10.

(b) The regulations in this sub-chapter are not retroactive in effect, except as provided in § 50.05–5 or § 50.05– 10, or if specifically so provided for at the time specific regulations are amended or added.

(c) The requirements in this sub-chapter revised or added subsequent to July 1, 1969, shall be applicable to the installations contracted for after the effective dates of such requirements.

Normally, materials, items of equip-ment, or installations in vessels which have been accepted and passed as satis-factory and meeting the applicable re-quirements in this subchapter then in effect and which are maintained in good and serviceable condition to the satisfaction of the Officer in Charge, Marine Inspection, may be continued in use until replacement is deemed nec-essary by such officer or as specified in the regulations.

(d) Items of equipment, which are in use on vessels, previously approved by the Commandant but not complying with the latest specification require-ments may be continued in use so long as they are maintained in good and serviceable condition to the satisfac-tion of the Officer in Charge, Marine Inspection, until replacement is deemed necessary by such officer or as specified in the regulations.

(e) Industrial systems and compo-nents on mobile offshore drilling units must meet subpart 58.60 of this chap-ter.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 73–251, 43 FR 56799, Dec. 4, 1978; CGD 77–147, 47 FR 21809, May 20, 1982;

USCG–2000–7790, 65 FR 58459, Sept. 29, 2000]

§ 50.05–5 Existing boilers, pressure vessels or piping systems.

(a) Whenever doubt exists as to the safety of an existing boiler, pressure vessel, or piping system, the marine in-spector may require that it be gaged or checked to determine the extent of de-terioration, and if necessary for safety may require the recalculation and re-duction of the maximum allowable working pressure.

(b) For the purpose of recalculating the maximum allowable working pres-sure of boilers, pressure vessels, or pip-ing which have deteriorated in service, the applicable design formulas in effect at the time it was contracted for or built or the currently effective design formulas in this subchapter shall be used: Provided, That such recalculation based on currently effective design for-mulas in this subchapter does not per-mit a higher pressure than that origi-nally allowed by the regulations in ef-fect at the time such work was con-tracted for or built.

(c) When existing vessels are reboilered, the mountings and attach-ments shall be renewed in accordance

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46 CFR Ch. I (10–1–12 Edition) § 50.05–10 with the regulations in this subchapter in effect at the time such reboilering work is contracted for. The existing steam piping shall be examined. Those portions which are in good condition and comply with minimum thickness requirements in effect at the time such reboilering work is contracted for may be continued in service. The steam pip-ing replaced shall be in accordance with the regulations in this subchapter in effect for new construction.

(d) For the purpose of this section, existing equipment includes only items which have previously met all Coast Guard requirements for installation aboard a vessel certificated by the Coast Guard, including requirements for design, fabrication, testing, and in-spection at the time the equipment was new.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 81–79, 50 FR 9430, Mar. 8, 1985]

§ 50.05–10 Alterations or repairs.

(a) When alteration or repair of boil-ers, pressure vessels, machinery, safety valves or piping systems becomes nec-essary, the work shall be done under the cognizance of the Officer in Charge Marine Inspection. It shall be done in accordance with the regulations in ef-fect at the time such vessel or installa-tion was contracted for or built (which-ever is latest), or in accordance with the regulations in effect for new con-struction.

(b) When alterations or repairs are made to a U.S. flag vessel in a port or place not in the United States, a notice containing details of the proposed al-terations or repairs must be submitted to the appropriate Officer in Charge, Marine Inspection.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 73–251, 43 FR 56799, Dec. 4, 1978]

§ 50.05–15 Vessels subject to regula-tions in this subchapter.

(a) Passenger vessels, tank vessels, cargo and miscellaneous vessels, nau-tical schoolships, mobile offshore drill-ing units, and oceanographic vessels are subject to the regulations in this subchapter to the extent prescribed by various laws and regulations as de-scribed in § 50.01–1. The applicable pro-visions in this subchapter shall apply to all such U.S. flag vessels, and to all such foreign vessels which carry pas-sengers from any port in the United States except as follows:

(1) Any vessel of a foreign nation sig-natory to the International Convention for Safety of Life at Sea, 1974, and which has on board a current, valid Convention certificate attesting to the sufficiency of the marine engineering details as prescribed by applicable reg-ulations in this chapter.

(2) Any vessel of a foreign nation having inspection laws approximating those of the United States together with reciprocal inspection arrange-ments with the United States, and which has on board a current, valid certificate of inspection issued by its government under such arrangements.

(3) Any vessel operating exclusively on inland waters which are not navi-gable waters of the United States.

(4) Any vessel laid up and dismantled and out of commission.

(5) With the exception of vessels of the U.S. Maritime Administration, any vessel with the title vested in the United States and which is used for public purposes.

(b) Notwithstanding the exceptions previously noted in paragraphs (a) (1) and (2) of this section, foreign vessels of novel design or construction or whose operation involves potential un-usual risks shall be subject to inspec-tion to the extent necessary to safe-guard life and property in U.S. ports, as further provided by § 2.01–13 in sub-chapter A (Procedures Applicable to the Public) of this chapter.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 73–251, 43 FR 56799, Dec. 4, 1978; CGD 80–161, 48 FR 15472, Apr. 11, 1983;

CGD 90–008, 55 FR 30660, July 26, 1990; CGD 95–012, 60 FR 48049, Sept. 18, 1995]

§ 50.05–20 Steam-propelled motorboats.

(a) The requirements covering design of the propelling engine, boiler, and the auxiliary machinery, and the inspec-tion thereof on all motor boats which are more than 40 feet in length and which are propelled by machinery driv-en by steam shall be in accordance with the applicable provisions of this subchapter.

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Coast Guard, Dept. of Homeland Security § 50.10–25

(b) If the engines, boilers, and auxil-iary machinery are found to be in safe operating condition at the initial or subsequent periodical inspection, the Officer in Charge, Marine Inspection, shall issue a letter to that effect. Such letter shall be posted on the vessel under glass. The letter will be valid for a specified period of time, as deter-mined by the Officer in Charge, Marine Inspection. The owner, within 30 days prior to its expiration, shall make ap-plication to the nearest Officer in Charge, Marine Inspection for a re-newal thereof.

Subpart 50.10—Definition of Terms Used in This Subchapter

§ 50.10–1 Commandant.

The term Commandant means the

Commandant U.S. Coast Guard.

§ 50.10–5 Coast Guard District Com-mander or District Commander.

The term Coast Guard District Com-mander or District Commander means an officer of the Coast Guard designated as such by the Commandant to com-mand all Coast Guard activities within his district, which include the inspec-tions, enforcement, and administration of Subtitle II, Title 46, U.S. Code, Title 46 and Title 33 U.S. Code, and regula-tions under these statutes.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 95–028, 62 FR 51200, Sept. 30, 1997]

§ 50.10–10 Officer in Charge, Marine Inspection, (OCMI).

The term Officer in Charge, Marine In-spection, (OCMI) means any person from the civilian or military branch of the Coast Guard designated as such by the Commandant and who, under the superintendence and direction of the Coast Guard District Commander, is in charge of an inspection zone for the performance of duties with respect to the inspections, enforcement, and ad-ministration of Subtitle II, Title 46, U.S. Code, Title 46 and Title 33 U.S.

Code, and regulations under these stat-utes.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 95–028, 62 FR 51200, Sept. 30, 1997]

§ 50.10–15 Marine inspector or inspec-tor.

The term marine inspector or inspector means any person from the civilian or military branch of the Coast Guard as-signed under the superintendence and direction of an Officer in Charge, Ma-rine Inspection, or any other person as may be designated for the performance of duties with respect to the inspec-tions, enforcement and the administra-tion of Subtitle II, Title, 46, U.S. Code, Title 46 and Title 33, U.S. Code, and regulations under these statutes.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 95–028, 62 FR 51200, Sept. 30, 1997]

§ 50.10–20 Headquarters.

The term Headquarters means the Of-fice of the Commandant, U.S. Coast Guard, Washington, D.C. 20593–0001.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 88–070, 53 FR 34534, Sept. 7, 1988]

§ 50.10–23 Marine Safety Center.

The term Marine Safety Center refers to the Commanding Officer, U.S. Coast Guard Marine Safety Center, 1900 Half Street, SW., Suite 1000, Room 525, Washington, DC 20024 for visitors. Send all mail to Commanding Officer, U.S.

Coast Guard Marine Safety Center, 2100 2nd St. SW., Stop 7102, Washington, DC 20593–7102, in a written or electronic format. Information for submitting the VSP electronically can be found at http://www.uscg.mil/HQ/MSC.

[USCG–2007–29018, 72 FR 53965, Sept. 21, 2007;

USCG–2009–0702, 74 FR 49228, Sept. 25, 2009]

§ 50.10–25 Coast Guard Symbol.

(a) The term Coast Guard Symbol means that impression stamped on the nameplates of boilers, pressure vessels, and safety valves by a marine inspector upon the satisfactory completion of the tests and inspection of the product. It may also be used by a marine inspector to identify workmanship test plates and welding samples.

(b) The impression of the Coast Guard Symbol for stamping name-plates and specimens is shown in Fig-ure 50.10–25(b).

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46 CFR Ch. I (10–1–12 Edition) § 50.10–30

FIGURE 50.10–25(B)—COAST GUARD SYMBOL

§ 50.10–30 Coast Guard number.

(a) The Coast Guard number means that number assigned to boilers and pressure vessels by the Officer in Charge, Marine Inspection, who makes the final tests and inspections.

(b) The Coast Guard number shall be stamped on the nameplates of boilers and pressure vessels.

(c) The Coast Guard number is com-prised of the following:

(1) Three capital letters which iden-tify the office of the issuing Officer in Charge, Marine Inspection (see Table 50.10–30); followed by,

(2) An OCMI serial number, by which the particular boiler or pressure vessel can be identified; the first two digits of which will identify the calendar year the number was assigned.

TABLE 50.10–30—PREVIOUS SECTOR OFFICE

IDENTIFICATION LETTERS IN COAST GUARD

NUMBERS FOR BOILERS AND PRESSURE VES-

SELS

Identification Sector Office

ALB .................................................. Albany.

ANC ................................................. Anchorage.

BAL .................................................. Baltimore.

BOS ................................................. Boston.

BUF ................................................. Buffalo.

CHA ................................................. Charleston.

CHI .................................................. Chicago.

CIN .................................................. Cincinnati.

CLE ................................................. Cleveland.

COR ................................................ Corpus Christi.

DET ................................................. Detroit.

DUL ................................................. Duluth.

GAL ................................................. Galveston.

GUA ................................................. Guam.

HON ................................................ Honolulu.

HOU ................................................ Houston.

HRV ................................................. Hampton Roads, VA.

HUN ................................................. Huntington.

JAC .................................................. Jacksonville.

JUN ................................................. Juneau.

TABLE 50.10–30—PREVIOUS SECTOR OFFICE

IDENTIFICATION LETTERS IN COAST GUARD

NUMBERS FOR BOILERS AND PRESSURE VES-

SELS—Continued

Identification Sector Office

LIS ................................................... Long Island.

LOS ................................................. Los Angeles.

LOU ................................................. Louisville.

MEM ................................................ Memphis.

MIA .................................................. Miami.

MIL .................................................. Milwaukee.

MIN .................................................. Minneapolis.

MOB ................................................ Mobile.

MOR ................................................ Morgan City.

NAS ................................................. Nashville.

NEW ................................................ New Orleans.

NYC ................................................. New York.

PAD ................................................. Paducah.

PAT ................................................. Port Arthur.

PHI .................................................. Philadelphia.

PIT ................................................... Pittsburgh.

POM ................................................ Portland, ME.

POR ................................................. Portland, OR.

PRO ................................................. Providence.

ROT ................................................. Rotterdam.

SAV ................................................. Savannah.

SDC ................................................. San Diego.

SEA ................................................. Seattle.

SFC ................................................. San Francisco.

SIM .................................................. Saint Ignace.

SJP .................................................. San Juan.

SLM ................................................. St. Louis.

STB ................................................. Sturgeon Bay.

TAM ................................................. Tampa.

TOL ................................................. Toledo.

VAL .................................................. Valdez.

WNC ................................................ Wilmington, NC.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGFR 69–127, 35 FR 9975, June 17, 1970; CGD 74–219, 39 FR 40158, Nov. 14, 1974;

CGD 78–161, 44 FR 13492, Mar. 12, 1979; USCG– 2000–7790, 65 FR 58459, Sept. 29, 2000; USCG– 2006–25556, 72 FR 36330, July 2, 2007]

§ 50.10–35 Constructed.

The term constructed means the keel has been laid or, for vessels with no keel, assembly of at least 50 tons or 1% of the estimated mass of all structural material, whichever is less, has been completed.

[CGD 83–043, 60 FR 24772, May 10, 1995]

Subpart 50.20—Plan Submittal and Approval

§ 50.20–1 General.

(a) The required vessel, equipment, or installation plans, as listed in this sub-chapter, are general in character, but include all plans which normally show the intended construction and safety features coming under the cognizance

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Coast Guard, Dept. of Homeland Security § 50.20–30 of the Coast Guard. In a particular case, however, not all of the plans enu-merated may be applicable, and in such cases the Coast Guard will so notify the submitter.

(b) Manufacturers of pressure vessels and other components, which require specific fabrication inspection in ac-cordance with the requirements of this subchapter, shall submit and obtain ap-proval of the applicable construction plans prior to the commencement of such fabrication. Manufacturers of automatically controlled boilers shall submit and obtain approval of the ap-plicable control system plans prior to installation of the boiler. Manufactur-ers of boilers which must meet the re-quirements of part 52 of this sub-chapter shall submit the applicable construction plans for review prior to installation.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 81–79, 50 FR 9431, Mar. 8, 1985]

§ 50.20–5 Procedures for submittal of plans.

(a) As the relative locations of ship-yards, design offices, and Coast Guard offices vary throughout the country, no specific routing will be required in the submittal of plans. In general, one of the procedures outlined in this sec-tion apply, but if a more expeditious procedure can be used, there will nor-mally be no objection to it.

(b) The plans may be submitted in duplicate to the Officer in Charge, Ma-rine Inspection, at or nearest the place where the vessel is to be built. Alter-natively, the plans may be submitted in triplicate to the Marine Safety Cen-ter.

(c) In the case of classed vessels, upon specific request by the submitter, the American Bureau of Shipping will arrange to forward the necessary plans to the Coast Guard indicating its ac-tion thereon. In this case, the plans will be returned directly to the sub-mitter as noted in paragraph (c) of this section.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 88–070, 53 FR 34534, Sept. 7, 1988; CGD 77–140, 54 FR 40598, Oct. 2, 1989;

CGD 95–012, 60 FR 48049, Sept. 18, 1995; CGD 95–072, 60 FR 50462, Sept. 29, 1995]

§ 50.20–10 Number of copies of plans required.

(a) Three copies of each plan are nor-mally required so that one copy can be returned to the submitter. If the sub-mitter desires additional copies of ap-proved plans, a suitable number should be submitted to permit the required distribution.

§ 50.20–15 Previously approved plans.

(a) A manufacturer wishing to fab-ricate equipment in accordance with a plan previously approved (including work accomplished under a different contract) shall not be required to re-submit such plans provided:

(1) Certification is submitted that the proposed equipment conforms in every respect to the plan previously ap-proved, and such certification contains the drawing number, title, date, and last revision or change date, and date of previous approval;

(2) The current regulations, including adopted specifications, standards or codes, pertaining to the proposed equipment are the same as those cur-rent when the original plan was ap-proved; and

(3) A copy of the approved plan is available for review by the approving office.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 77–140, 54 FR 40598, Oct. 2, 1989]

§ 50.20–25 Calculations.

(a) Calculations shall be forwarded with plans submitted for approval and shall clearly substantiate compliance with the regulations in this sub-chapter. Care shall be taken to identify sources of equations, factors and other information upon which the calcula-tions are based.

(b) The results of the calculations, such as the maximum allowable work-ing pressure (MAWP), test pressure, and safety device settings, shall be clearly identified.

§ 50.20–30 Alternative materials or methods of construction.

(a) When new or alternative proce-dures, designs, or methods of construc-tion are submitted for approval and for

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46 CFR Ch. I (10–1–12 Edition) § 50.20–33 which no regulations have been pro-vided, the Commandant will act re-garding the approval or disapproval thereof.

(b) If, in the development of indus-trial arts, improved materials or meth-ods of construction are developed, their use in lieu of those specified will be given consideration upon formal appli-cation to the Commandant, with full information as to their characteristics, together with such scientific data and evidence as may be necessary to estab-lish the suitability of such materials or methods of construction for the pur-pose intended.

§ 50.20–33 [Reserved]

§ 50.20–35 Marine inspector’s deci-sions.

(a) When it becomes necessary for a marine inspector to make decisions on matters covered by the regulations in this subchapter or by requirements in referenced specifications, standards or codes, the inspector shall inform the owner or his representative of the re-quirement, which will be identified by source, section and paragraph number, on which the decisions are based.

Whenever it is necessary to make deci-sions in matters not specifically cov-ered by the regulations in this sub-chapter or by referenced requirements, the marine inspector shall clearly state the reasons which caused him to arrive at such decisions.

(b) If the owner or his representative disagrees with a decision made by the marine inspector, he shall take up the matter with the local Officer in Charge, Marine Inspection. The owner or his representative may appeal the decision of the Officer in Charge, Ma-rine Inspection, in accordance with § 50.20–40.

§ 50.20–40 Right of appeal.

Any person directly affected by a de-cision or action taken under this sub-chapter, by or on behalf of the Coast Guard, may appeal therefrom in ac-cordance with subpart 1.03 of this chap-ter.

[CGD 88–033, 54 FR 50380, Dec. 6, 1989]

Subpart 50.25—Acceptance of Material and Piping Components

§ 50.25–1 General.

(a) Materials and piping components used in the construction of boilers, pressure vessels, pressure piping sys-tems, and related components are ac-cepted by review of manufacturer or mill certificates under § 50.25–3 of this part, product marking in accordance with an adopted industry standard, or technical information indicating their compliance with the requirements of this subchapter.

(b) Plate, bar stock, pipe, tube, pipe joining fittings (tees, elbows, reducers, etc.), bolting, castings, forgings, and flanges, are accepted by review of man-ufacturer or mill certificates under §§ 50.25–3, 50.25–5, and 50.25–7 of this part.

(c) Valves, fluid conditioner fittings, and special purpose fittings complying with an adopted industry standard and marked in accordance with the stand-ard are accepted through review of the marking indicating compliance with the adopted industry standard.

(d) Valves, fluid conditioner fittings, special purpose fittings, and pipe join-ing fittings not complying with an adopted industry standard are accepted for use on a case-by-case basis. Accept-ance is granted by the Marine Safety Center or the Officer in Charge, Marine Inspection, having cognizance over the installation of the product. To obtain acceptance of a product, the manufac-turer must submit, via the vessel owner or representative, the informa-tion described in § 50.25–10 of this part to the Marine Safety Center or the cog-nizant Officer in Charge, Marine In-spection.

(e) Components designed for hydrau-lic service which require shock testing under § 58.30–15(f) of this chapter and nonmetallic flexible hose assemblies must be accepted by the Commandant (CG–ENG). Manufacturers desiring ac-ceptance of these products must sub-mit information necessary to show compliance with §§ 56.60–25(c) or 58.30–15

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Coast Guard, Dept. of Homeland Security § 50.25–7 of this chapter, as applicable. Accept-ance of specific installations of accept-able nonmetallic flexible hose assem-blies and shock tested hydraulic com-ponents is granted by the Marine Safe-ty Center or the cognizant Officer in Charge, Marine Inspection, as described in paragraph (d) of this section.

(f) The vessel owner or representative shall make available to the Officer in Charge, Marine Inspection, the manu-facturer or mill certificates, specific letters of acceptance, or approved plans necessary to verify that piping compo-nents comply with the requirements of this subchapter.

[CGD 77–140, 54 FR 40598, Oct. 2, 1989, as amended by CGD 95–072, 60 FR 50462, Sept. 29, 1995; CGD 96–041, 61 FR 50727, Sept. 27, 1996;

USCG–2004–18884, 69 FR 58345, Sept. 30, 2004;

USCG–2003–16630, 73 FR 65160, Oct. 31, 2008;

USCG–2012–0832, 77 FR 59777, Oct. 1, 2012]

§ 50.25–3 Manufacturer or mill certifi-cation.

(a) A manufacturer or mill producing materials used in certain products for installation on inspected vessels, shall issue a certificate or mill test report which shall report the results of chem-ical analysis and mechanical properties required by the ASTM specification.

(b) This certificate shall be made available to the marine inspector and Officer in Charge, Marine Inspection, upon request to the fabricator. (For ex-ception refer to § 50.25–5(d).)

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 77–140, 54 FR 40598, Oct. 2, 1989]

§ 50.25–5 Products requiring manufac-turer or mill certification.

(a) Products required to be certified by a manufacturer or by mill certifi-cate shall be fabricated and tested in accordance with the applicable speci-fications. Such products will not nor-mally be subject to mill inspection by the Coast Guard except as required by § 50.25–7.

(b) The Officer in Charge, Marine In-spection, having cognizance over the installation of the products required to be certified shall ensure that adequate control has been exercised to identify the product with its manufacturer or mill certificate.

(c) In the event that the Officer in Charge, Marine Inspection, determines that handling of a product has been such that proper identification is not possible, he may:

(1) Require testing in his presence based on the applicable material or fabrication specification; or

(2) Reject the product on the basis that it cannot be properly identified.

(d) A product conforming to an ac-ceptable material specification may, at the discretion of the Officer in Charge, Marine Inspection, be accepted without referring to its manufacturer or mill certification, if:

(1) The product is marked in accord-ance with the identification marking requirements of the specification;

(2) The marking alone is sufficient to identify that specification; and

(3) In the opinion of the Officer in Charge, Marine Inspection, the applica-tion of the product does not require knowledge of the exact chemical anal-ysis or mechanical properties enumer-ated on the manufacturer or mill cer-tificate.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 77–140, 54 FR 40598, Oct. 2, 1989]

§ 50.25–7 Testing of products required to be certified in presence of ma-rine inspector.

(a) Certified products are not nor-mally tested in the presence of a ma-rine inspector. The Commandant may, however, assign a marine inspector to witness tests required by the applicable specifications to satisfy himself that the requirements are met.

(b) Marine inspectors shall have free entry at all times to those parts of the plant where material subject to the regulations in this subchapter is being manufactured. The manufacturer shall provide marine inspectors all reason-able facilities to satisfy them that the material is being manufactured in ac-cordance with the requirements of the Commandant.

(c) Unless otherwise authorized, re-quired tests and inspections described in applicable specifications shall be made at the place of manufacture prior to shipment. Unless otherwise speci-fied, tests shall be performed at room

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46 CFR Ch. I (10–1–12 Edition) § 50.25–10 temperature. These tests when per-formed in the presence of a marine in-spector will be so conducted as not to interfere unnecessarily with the oper-ation of the plant.

(d) Marine inspectors shall assure themselves that test specimens are marked for positive identification with the materials which they represent.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 77–140, 54 FR 40599, Oct. 2, 1989]

§ 50.25–10 Acceptance of piping compo-nents by specific letter or approved plan.

(a) A manufacturer of a piping com-ponent which does not comply with an adopted industry standard and requires acceptance by specific letter or ap-proved plan must do the following:

(1) Submit an engineering type cata-log or representative drawings of the component which includes the pressure and temperature ratings of the compo-nent and identify the service for which it is intended.

(2) Identify materials used to fab-ricate the component. Materials must meet the requirements of subpart 56.60 of this chapter. If the component is not manufactured to accepted material specifications, the manufacturer must prove equivalency to accepted material specifications by comparing details of the materials’ chemical composition, mechanical properties, method of man-ufacture, and complete chemical and mechanical test results with an accept-ed material specification.

(3) Identify the industry standard, if any, to which the component is manu-factured.

(4) Submit a description of non-destructive testing performed on the component.

(5) Submit a description of the mark-ing applied to the component.

(6) Submit information showing com-pliance with the requirements of part 56, subparts 56.15, 56.20, 56.25, 56.30, or

56.35 of this chapter, as applicable.

(7) Submit any additional informa-tion necessary to evaluate the compo-nent’s acceptability for its intended ap-plication.

(b) If the component is found to com-ply with the requirements of this sub-chapter, the component is designated as acceptable for its intended installa-tion. This acceptance is in the form of a specific letter relating directly to the particular component or in the form of an approved piping system plan in which the component is identified as an integral part.

[CGD 77–140, 54 FR 40599, Oct. 2, 1989]

Subpart 50.30—Fabrication Inspection

§ 50.30–1 Scope.

(a) The manufacturer shall notify the Officer in Charge, Marine Inspection, of the intended fabrication of pressure vessels that will require Coast Guard inspection.

(b) For exemption of certain pressure vessels from shop inspection see § 54.01– 15 of this subchapter.

(c) For a classification delineation of boilers and pressure vessels refer to Ta-bles 54.01–5(a) and 54.01–5(b) of this sub-chapter.

[CGFR 68–82, 33 FR 18808, Dec. 18, 1968, as amended by CGD 81–79, 50 FR 9431, Mar. 8, 1985]

§ 50.30–10 Class I, I-L and II-L pressure vessels.

(a) Classes I, I-L and II-L pressure vessels shall be subject to shop inspec-tion at the plant where they are being fabricated, or when determined nec-essary by the Officer in Charge, Marine Inspection.

(b) The manufacturer shall submit Class I, I-L and II-L pressure vessels, as defined in Parts 54 and 56 of this sub-chapter for shop inspection at such stages of fabrication as may be re-quested by the Officer in Charge, Ma-rine Inspection.

[CGD 95–012, 60 FR 48049, Sept. 18, 1995]

§ 50.30–15 Class II pressure vessels.

(a) Class II pressure vessels shall be subject to shop inspections at the plant where they are being fabricated, as or when determined necessary by the Offi-cer in Charge, Marine Inspection. The inspections described in this section are required, unless specifically ex-empted by other regulations in this subchapter.

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Coast Guard, Dept. of Homeland Security Pt. 52

(b) The first inspection of Class II welded pressure vessels shall be per-formed during the welding of the longi-tudinal joint. At this time the marine inspector shall check the material and fit-up of the work, and ascertain that only welders who have passed the re-quired tests are employed.

(c) A second inspection of Class II welded pressure vessels shall be made during the welding of the circumferen-tial joints. At this time the marine in-spector shall check any new material being used which may not have been examined at the time of the first in-spection, also the fit-up of the vessel at this stage of fabrication, and in addi-tion, observe the welding and ascertain that only welders who have passed the required tests are employed.

§ 50.30–20 Class III pressure vessels.

(a) Class III pressure vessels shall be subject to shop inspection at the plant where they are being fabricated, as or when determined necessary by the Offi-cer in Charge, Marine Inspection. The inspection described in this section is required, unless specifically exempted by other regulations in this sub-chapter.

(b) For Class III welded pressure ves-sels, one inspection shall be made dur-ing the welding of the longitudinal joint. If there is no longitudinal joint, the inspection shall be made during the welding of a circumferential joint. At this time the marine inspector shall check the material and fit-up of the work and see that only welders who have passed the required tests are em-ployed.

PART 51 [RESERVED]

PART 52—POWER BOILERS

Subpart 52.01—General Requirements

Sec.

52.01–1 Incorporation by reference.

52.01–2 Adoption of section I of the ASME

Boiler and Pressure Vessel Code.

52.01–3 Definitions of terms used in this part.

52.01–5 Plans.

52.01–10 Automatic controls.

52.01–35 Auxiliary, donkey, fired thermal fluid heater, and heating boilers.

52.01–40 Materials and workmanship.

52.01–50 Fusible plugs (modifies A–19 through A–21).

52.01–55 Increase in maximum allowable working pressure.

52.01–90 Materials (modifies PG–5 through

PG–13).

52.01–95 Design (modifies PG–16 through PG–31 and PG–100).

52.01–100 Openings and compensation (modi-fies PG–32 through PG–39, PG–42 through

PG–55).

52.01–105 Piping, valves and fittings (modi-fies PG–58 and PG–59).

52.01–110 Water-level indicators, water col-umns, gauge-glass connections, gauge cocks, and pressure gauges (modifies PG– 60).

52.01–115 Feedwater supply (modifies PG– 61).

52.01–120 Safety valves and safety relief valves (modifies PG–67 through PG–73).

52.01–130 Installation.

52.01–135 Inspection and tests (modifies PG–

90 through PG–100).

52.01–140 Certification by stamping (modi-fies PG–104 through PG–113).

52.01–145 Manufacturers’ data report forms

(modifies PG–112 and PG–113).

Subpart 52.05—Requirements for Boilers Fabricated by Welding

52.05–1 General (modifies PW–1 through PW– 54).

52.05–15 Heat treatment (modifies PW–10).

52.05–20 Radiographic and ultrasonic exam-ination (modifies PW–11 and PW–41.1).

52.05–30 Minimum requirements for attach-ment welds (modifies PW–16).

52.05–45 Circumferential joints in pipes, tubes and headers (modifies PW–41).

Subpart 52.15—Requirements for Watertube Boilers

52.15–1 General (modifies PWT–1 through

PWT–15).

52.15–5 Tube connections (modifies PWT–9 and PWT–11).

Subpart 52.20—Requirements for Firetube Boilers

52.20–1 General (modifies PFT–1 through

PFT–49).

52.20–17 Opening between boiler and safety valve (modifies PFT–44).

52.20–25 Setting (modifies PFT–46).

Subpart 52.25—Other Boiler Types

52.25–1 General.

52.25–3 Feedwater heaters (modifies PFH–1).

52.25–5 Miniature boiler (modifies PMB–1 through PMB–21).

52.25–7 Electric boilers (modifies PEB–1 through PEB–19).

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46 CFR Ch. I (10–1–12 Edition) § 52.01–1

52.25–10 Organic fluid vaporizer generators (modifies PVG–1 through PVG–12).

52.25–15 Fired thermal fluid heaters.

52.25–20 Exhaust gas boilers.

AUTHORITY: 46 U.S.C. 3306, 3307, 3703; E.O.

12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277;

Department of Homeland Security Delega-tion No. 0170.1.

SOURCE: CGFR 68–82, 33 FR 18815, Dec. 18, 1968, unless otherwise noted.

Subpart 52.01—General Requirements

§ 52.01–1 Incorporation by reference.

(a) Certain material is incorporated by reference into this part with the ap-proval of the Director of the Federal Register under 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this sec-tion, the Coast Guard must publish no-tice of change in the FEDERAL REG- ISTER and the material must be avail-able to the public. All approved mate-rial is available for inspection at the National Archives and Records Admin-istration (NARA). For information on the availability of this material at NARA, call 202–741–6030 or go to http:// www.archives.gov/federallregister/ codeloflfederallregulations/ ibrllocations.html. The material is also available for inspection at the U.S.

Coast Guard, Office of Design and Engi-neering Standards (CG–ENG), 2100 2nd St., SW., Stop 7126, Washington, DC 20593–7126, and is available from the sources listed below.

(b) American Society of Mechanical En-gineers (ASME) International, Three Park Avenue, New York, NY 10016–5990:

(1) 2001 ASME Boiler and Pressure Vessel Code, Section I, Rules for Con-struction of Power Boilers (July 1, 2001) (‘‘Section I of the ASME Boiler and Pressure Vessel Code’’), 52.01–2; 52.01–5;

52.01–50; 52.01–90; 52.01–95; 52.01–100;

52.01–105; 52.01–110; 52.01–115; 52.01–120;

52.01–135; 52.01–140; 52.01–145; 52.05–1;

52.05–15; 52.05–20; 52.05–30; 52.05–45; 52.15– 1; 52.15–5; 52.20–1; 52.20–25; 52.25–3; 52.25– 5; 52.25–7; and 52.25–10.

(2) 1998 ASME Boiler and Pressure Vessel Code, Section II, Part A—Fer-rous Material Specifications and Part B—Nonferrous Material Specifications (1998) (‘‘Section II of the ASME Boiler and Pressure Vessel Code’’), 52.01–90.

(3) [Reserved]

[USCG–2003–16630, 73 FR 65160, Oct. 31, 2008, as amended by USCG–2009–0702, 74 FR 49228, Sept. 25, 2009; USCG–2012–0832, 77 FR 59777, Oct. 1, 2012]

§ 52.01–2 Adoption of section I of the ASME Boiler and Pressure Vessel Code.

(a) Main power boilers and auxiliary boilers shall be designed, constructed, inspected, tested, and stamped in ac-cordance with section I of the ASME Boiler and Pressure Vessel Code (incor-porated by reference; see 46 CFR 52.01– 1), as limited, modified, or replaced by specific requirements in this part. The provisions in the appendix to section I of the ASME Boiler and Pressure Ves-sel Code are adopted and shall be fol-lowed when the requirements in sec-tion I make them mandatory. For gen-eral information, Table 52.01–1(a) lists the various paragraphs in section I of the ASME Boiler and Pressure Vessel Code that are limited, modified, or re-placed by regulations in this part.

TABLE 52.01–1(a)—LIMITATIONS AND MODIFICA-

TIONS IN THE ADOPTION OF SECTION I OF THE

ASME CODE

Paragraphs in section I, ASME Code1 and disposition Unit of this part

PG–1 replaced by ..................................... 54.01–5(a) PG–5 through PG–13 modified by ........... 52.01–90 PG–16 through PG–31 modified by ......... 52.01–95 PG–32 through PG–39 modified by ......... 52.01–100 PG–42 through PG–55 modified by ......... 52.01–100 PG–58 and PG–59 modified by ............... 52.01–105 PG–60 modified by ................................... 52.01–110 PG–61 modified by ................................... 52.01–115

(56.50–30) PG–67 through PG–73 modified by ......... 52.01–120 PG–90 through PG–100 modified by ....... 52.01–135

(52.01–95) PG–91 modified by ................................... 52.01–135(b) PG–99 modified by ................................... 52.01–135(c) PG–100 modified by ................................. 52.01–95(e) PG–104 through PG–113 modified by ..... 52.01–140(a) PG–112 and PG–113 modified by ........... 52.01–145 PW–1 through PW–54 modified by .......... 52.05–1 PW–10 modified by .................................. 52.05–15 PW–11.1 modified by ............................... 52.05–20 PW–16 modified by .................................. 52.05–30 PW–41 modified by .................................. 52.05–20, 52.05–

PWT–1 through PWT–15 modified by ...... 52.15–1 PWT–9 modified by .................................. 52.15–5 PWT–9.2 replaced by ............................... 52.15–5(b) PWT–11 modified by ................................ 52.15–5 PWT–11.3 replaced by ............................. 52.15–5(b) PFT–1 through PFT–49 modified by ........ 52.20–1 PFT–44 modified by ................................. 52.20–17 PFT–46. modified by ................................ 52.20–25 PFH–1 modified by ................................... 52.25–3 PMB–1 through PMB–21 modified by ...... 52.25–5

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Coast Guard, Dept. of Homeland Security § 52.01–3

TABLE 52.01–1(a)—LIMITATIONS AND MODIFICA-

TIONS IN THE ADOPTION OF SECTION I OF THE

ASME CODE—Continued

Paragraphs in section I, ASME Code1 and disposition Unit of this part

PEB–1 through PEB–19 modified by ....... 52.25–7 PVG–1 through PVG–12 modified by ...... 52.25–10 A–19 through A–21 modified by ............... 52.01–50

1 The references to specific provisions in the ASME Code are coded. The first letter ‘‘P’’ refers to section I, while the let-ter ‘‘A’’ refers to the appendix to section I. The letter or letters following ‘‘P’’ refer to a specific subsection of section I. The number following the letter or letters refers to the paragraph so numbered in the text.

(b) References to the ASME Code, such as paragraph PG–1, indicate:

P=Section I, Power Boilers ASME Code.

G=Subsection—General.

1=Paragraph 1.

(c) When a section or paragraph of the regulations in this part relates to material in section I of the ASME Code, the relationship with the code will be shown immediately following the heading of the section or at the be-ginning of the paragraph as follows:

(1) (Modifies P lll.) This indicates that the material in P lll is gen-erally applicable but is being altered, amplified or augmented.

(2) (Replaces P lll.) This indicates that P lll does not apply.

(3) (Reproduces P lll.) This indi-cates that P lll is being identically reproduced for convenience, not for emphasis.

[CGFR 68–82, 33 FR 18815, Dec. 18, 1968, as amended by CGFR 69–127, 35 FR 9975, June 17, 1970; CGD 81–79, 50 FR 9431, Mar. 8, 1985. Re-designated and amended by CGD 88–032, 56 FR 35821, July 29, 1991; USCG –2003–16630, 73 FR 65160, Oct. 31, 2008]

§ 52.01–3 Definitions of terms used in this part.

(a) Types of boilers—(1) Main power boiler. A main power boiler is a steam boiler used for generating steam for main propulsion.

(2) Auxiliary or donkey boiler. An aux-iliary or donkey boiler is a steam boil-er used for all purposes, including emergency propulsion, for which steam may be required other than main pro-pulsion.

(3) Watertube boiler. A watertube boil-er is a steam boiler in which the boiler tubes contain water and steam. The heat is applied to the outside surface of the tubes.

(4) Internally fired firetube boiler (scotch boiler). An internally fired firetube boiler is a steam boiler con-taining furnaces, one or more combus-tion chambers and tubes or flues, which are surrounded by water and through which the products of combus-tion pass from the furnace to the up-take. In such boilers no part of the shell is in contact with the fire or prod-ucts of combustion.

(5) Externally fired firetube or flue boil-er (horizontal return tubular). An exter-nally fired firetube or flue boiler is a steam boiler, part of the outer shell of which is exposed to fire or to the prod-ucts of combustion, and containing flues through which such products pass from the furnace to the uptake.

(6) High temperature water boiler. A high temperature water boiler is a boil-er containing water at a temperature exceeding 250 °F.

(7) Packaged boiler. A packaged boiler is a steam boiler equipped, and shipped complete with fuel burning equipment, mechanical draft equipment, feed water apparatus and all necessary con-trols for manual or automatic oper-ation, all completely mounted on a common base and requiring only to be connected to fuel, water and electric supplies to be ready for use.

(8) Fired steam boiler. A pressure ves-sel in which steam is generated by the application of heat resulting from the combustion of fuel is classed as a fired steam boiler.

(9) Unfired steam boiler. A pressure vessel in which steam is generated by means other than fuel combustion is classed as an unfired steam boiler. (See § 54.01–10 of this subchapter.)

(10) Hybrid boiler. A hybrid boiler is a steam boiler whose design employs fea-tures from both watertube and firetube boilers.

(b) Parts of boilers—(1) Shell.