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Liquefied Petroleum Gas Code

Liquefi ed Petroleum

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58-1

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NFPA ®58

Liquefied Petroleum Gas Code

2017 Edition

This edition of NFPA 58, Liquefied Petroleum Gas Code, was prepared by the Technical Committee on Liquefied Petroleum Gases and acted on by NFPA at its June Association Technical Meeting held June 13–16, 2016, in Las Vegas, NV. It was issued by the Standards Council on August 4, 2016, with an effective date of August 24, 2016, and supersedes all previous editions.

This edition includes the following usability features as aids to the user. Technical changes are indicated by gray shading of the sections. An entire figure caption or table title with gray shading indicates a change to an existing figure or table. New sections, figures, and tables are indicated by a bold, italic N in a gray box to the left of the new material. Where one or more sections have been deleted, the deletion is indicated by a bullet (•) between the sections that remain.

This document has been amended by one or more Tentative Interim Amendments (TIAs) and/or Errata. See “Codes & Standards” at www.nfpa.org for more information.

This edition of NFPA 58 was approved as an American National Standard on August 24, 2016.

Origin and Development of NFPA 58

The first NFPA standard on LP-Gas was adopted in 1932. In 1940, several standards were combined and adopted as NFPA 58.

Revisions of NFPA 58 were adopted in 1934, 1937, 1939, 1940, 1943, 1946, 1948, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1965, 1967, 1969, 1972, 1974, 1976, 1979, 1983, 1986, 1989, 1992, 1995, 1998, 2001, 2004, 2008, 2011, 2014, and the latest one, in 2017.

The 2011 edition of NFPA 58 included several significant changes. The installation of underground LP-Gas storage containers required cathodic protection systems, and the systems were required to be monitored to verify that they were provided protection. The requirement that a pressure relief valve be piped vertically upward 7 ft (2.1 m) from the valve was deleted because the committee could find no technical reason to justify it. Former railroad tank car tanks were no longer allowed to be installed as permanent storage containers because they were not constructed to the ASME Boiler and Pressure Vessel Code, and additional recommendations for training were added to Annex A.

The 2014 edition harmonized container requirements for containers with 4000 gal and less water capacity (wc) and greater than 4000 gal wc. A bulk plant and an industrial plant are defined as facilities that store more than 4000 gal wc (15.2 m3), which is the reason for the demarcation point of 4000 gal wc. A new definition was added for vehicular barrier protection (VBP). There are many installations where the container and valves are required to be protected from vehicular impact, but no specific information was available as to what constituted such protection. In addition to the definition describing VBP, extensive annex material was incorporated. Prescriptive requirements also were added for VBP of LP-Gas dispensers.

Qualifications of personnel were expanded for clarification in Chapter 4. The requirements, which originated as a Temporary Interim Amendment (TIA) to the 2011 edition, specified which personnel must be trained and in which topics they must be trained. New requirements included the covering of tank heaters, and requirements for vaporizers were updated.

The 2014 edition included new requirements to provide cathodic protection for underground metallic piping systems greater than 2 in. diameter (5.08 cm). Previously, all underground metallic piping was only required to be coated or painted. The new requirements for piping systems were very similar to those for cathodic protection of underground containers.

The 2017 edition includes several significant changes. In previous editions, hot air balloons were not covered under the scope of NFPA 58, but they now are included with requirements referencing

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LIQUEFIED PETROLEUM GAS CODE58-2

2017 Edition the current state of federal law regarding their use and construction. The requirements for hot air balloons are included in the corresponding sections for scope, construction, and liquid transfer. The requirements for when a container or piping must be protected from snow loads have been altered to allow for calculations and snowfall maps from ASCE 7. The threshold for protecting containers and appurtenances from snow has been raised to 100 lb/ft2 (488 kgf/m2). Vehicle barrier protection (VBP) for cylinders protected in a metal cabinet have been removed. The VBP requirement for 12,000 lb (53,375 N) protection for vehicle fuel dispensers also has been removed.

A new chapter (Chapter 12) updates the technology now available for over-the-road vehicles utilizing LP-Gas. New definitions, construction, transportation, and location requirements have been added for skid tanks and porta-pacs. Also, there are now requirements in Chapter 6 for the placing of ASME tanks that have been disconnected from use.

Fire extinguisher requirements have been centralized to Section 4.7 for basic requirements, but individual capacity requirements remain in the specific application section. The appurtenance requirements in Table 5.9.4.1(B) have been expanded in the 2017 edition to cover containers, except DOT Spec. 39, less than 2 lb propane capacity. Universal tanks are now permitted to be filled in the horizontal or vertical orientation as long as the positioning slot is in the correct orientation.

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

COMMITTEE PERSONNEL 58-3

Technical Committee on Liquefied Petroleum Gases

Richard A. Hoffmann, Chair Hoffmann & Feige, NY [SE]

Donald Barber, Enmat International (UK), United Kingdom [SE] James C. Belke, U.S. Environmental Protection Agency, DC [E] Joseph M. Bloom, Bloom Fire Investigation, OR [SE] Paul N. Bogan, Sea-3, Incorporated, NH [U] David T. Burnell, New Hampshire Public Utilities Commission, NH [E]

Rep. U.S. Department of Transportation Sharon E. Coates, State of Arkansas, AR [E] Thomas B. Dunn, Iowa Propane Gas Association, IA [IM] Alberto Jose Fossa, MDJ, Assessoria & Engenharia Consultiva, Brasil

[SE]

Rep. NFPA Latin American Section Richard G. Fredenburg, State of North Carolina, NC [E] Cesar E. Garza-Obregon, Gas Campanita, TX [IM]

Rep. Asociación Mexicana de Distribuidores de Gas Steven T. Gentry, Worthington Industries, OH [M]

Rep. Compressed Gas Association Richard L. Gilbert, Texas Propane Gas Association, TX [IM] Stanley T. Kastanas, U.S. Department of Transportation, MA [E]

Rep. U.S. Department of Transportation John W. King, Federated Mutual Insurance Company, MN [I] Joseph Labonte, Navistar Corporation, OK [M]

Samuel E. McTier, Propane Technologies, LLC, IL [M] Rep. National Propane Gas Association

David W. Meyer, Gas Training & Development LLC, MN [SE] Gerry E. Misel, Jr., Georgia Gas Distributors, Inc., GA [IM]

Rep. National Propane Gas Association Frank J. Mortimer, EMC Insurance Company, IA [I]

Rep. Property Casualty Insurers Association of America James T. Osterhaus, Railroad Commission of Texas, TX [E] Phillip H. Ribbs, PHR Consultants, CA [L]

Rep. California State Pipe Trades Council David J. Stainbrook, Engineered Controls International, LLC, NC [M] Bruce J. Swiecicki, National Propane Gas Association, IL [IM]

Rep. National Propane Gas Association Thomas A. Wilson, City of Winter Park, FL [E]

Rep. International Fire Marshals Association Edgar Wolff-Klammer, UL LLC, IL [RT] Leslie Woodward, Fairview Fittings & Manufacturing Inc., NY [IM]

Rep. Canadian Propane Association William J. Young, Superior Energy Systems, Ltd., OH [M] Steven E. Younis, Steven E. Younis PE, Inc., MA [SE]

Alternates

Joseph M. Bablo, UL LLC, IL [RT] (Alt. to Edgar Wolff-Klammer)

Kody N. Daniel, EMC Insurance Companies, IA [I] (Alt. to Frank J. Mortimer)

James R. Freeman, III, Freeman Gas & Electric, Inc., SC [IM] (Alt. to Gerry E. Misel, Jr.)

Swapan Kumar Hazra, GF Natural Gas LNG Ltd./CNG Technology Ltd., India [U]

(Alt. to Paul N. Bogan) George K. Hess, U.S. Environmental Protection Agency, KS [E]

(Alt. to James C. Belke) Theodore C. Lemoff, Naples, FL [SE]

(Alt. to Donald Barber)

Robert E. McKinney, AMC/Fairmont Insurance Company, TX [IM] (Alt. to Richard L. Gilbert)

Carlton S. Revere, Revere Gas & Appliance, Inc., VA [IM] (Alt. to Bruce J. Swiecicki)

April Dawn Richardson, Railroad Commission of Texas, TX [E] (Alt. to James T. Osterhaus)

Steven D. Ruffcorn, Standby Systems, Inc., MN [M] (Alt. to William J. Young)

Eric C. Smith, Nevada LP-Gas Board, NV [E] (Alt. to Richard G. Fredenburg)

Erich Wolf, Cavagna North America, OH [M] (Alt. to Steven T. Gentry)

Nonvoting

Bernardo Bohorquez, Saena de Colombia S.A., Colombia [IM] Matthew I. Chibbaro, U.S. Department of Labor, DC [E] Kenneth Lun, KL Consulting Engineers Ltd., China [SE] William R. Hamilton, U.S. Department of Labor, DC [E]

(Alt. to Matthew I. Chibbaro)

Al Linder, Watsonville, CA [SE] (Member Emeritus)

Eric Nette, NFPA Staff Liaison

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

LIQUEFIED PETROLEUM GAS CODE58-4

This list represents the membership at the time the Committee was balloted on the final text of this edition.

Since that time, changes in the membership may have occurred. A key to classifications is found at the back of the document.

NOTE: Membership on a committee shall not in and of itself constitute an endorsement of the Association or any document developed by the committee on which the member serves.

Committee Scope: This Committee shall have primary responsibility for documents on the design, construction, installation, and operation of fixed and portable liquefied petroleum gas systems in bulk plants and commercial, industrial (with specified exceptions), institutional, and similar properties; truck transportation of liquefied petroleum gas; engine fuel systems on motor vehicles and other mobile equipment; storage of containers awaiting use or resale; installation on commercial vehicles; and liquefied petroleum gas service stations.

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

CONTENTS 58-5

Contents

Chapter 1 Administration ................................................ 58– 7

1.1 Scope. ....................................................................... 58– 7

1.2 Purpose. (Reserved) ............................................... 58– 7

1.3 Application. ............................................................. 58– 7

1.4 Retroactivity. ............................................................ 58– 7

1.5 Equivalency. ............................................................. 58– 7

1.6 Units and Formulas. (Reserved) ............................ 58– 8

1.7 Enforcement. ........................................................... 58– 8

Chapter 2 Referenced Publications ................................ 58– 8

2.1 General. ................................................................... 58– 8

2.2 NFPA Publications. ................................................. 58– 8

2.3 Other Publications. ................................................. 58– 8

2.4 References for Extracts in Mandatory Sections. ... 58– 9

Chapter 3 Definitions ...................................................... 58– 10

3.1 General. ................................................................... 58– 10

3.2 NFPA Official Definitions. ...................................... 58– 10

3.3 General Definitions. ................................................ 58– 10

Chapter 4 General Requirements ................................... 58– 14

4.1 Acceptance of Equipment and Systems. ................ 58– 14

4.2 LP-Gas Odorization. ................................................ 58– 14

4.3 Notification of Installations. ................................... 58– 14

4.4 Qualification of Personnel. ................................... 58– 15

4.5 Ammonia Contamination. ...................................... 58– 15

4.6 Minimum Requirements. ....................................... 58– 15

4.7 Portable Fire Extinguisher. ..................................... 58– 15

Chapter 5 LP-Gas Equipment and Appliances ............... 58– 15

5.1 Scope. ....................................................................... 58– 15

5.2 Containers. .............................................................. 58– 15

5.3 Reserved. ................................................................. 58– 18

5.4 Reserved. ................................................................. 58– 18

5.5 Reserved. ................................................................. 58– 18

5.6 Containers with Attached Supports. ...................... 58– 18

5.7 Reserved. ................................................................. 58– 19

5.8 Reserved. ................................................................. 58– 19

5.9 Container Appurtenances. .................................... 58– 19

5.10 Regulators and Regulator Vents. ........................... 58– 25

5.11 Piping (Including Hose), Fittings, and Valves. ..... 58– 26

5.12 Reserved. ................................................................. 58– 28

5.13 Internal Valves. (Reserved) .................................... 58– 28

5.14 Valves Other Than Container Valves. .................... 58– 28

5.15 Hydrostatic Relief Valves. ....................................... 58– 29

5.16 Reserved. ................................................................. 58– 29

5.17 Reserved. ................................................................. 58– 29

5.18 Reserved. ................................................................. 58– 29

5.19 Reserved. ................................................................. 58– 29

5.20 Equipment. .............................................................. 58– 29

5.21 Reserved. ................................................................. 58– 30

5.22 Reserved. ................................................................. 58– 30

5.23 Appliances. .............................................................. 58– 30

5.24 Vaporizers, Tank Heaters, Vaporizing Burners, and Gas-Air Mixers. ................................................. 58– 31

5.25 Reserved. ................................................................. 58– 33

5.26 Reserved. ................................................................. 58– 33

5.27 Vehicle Fuel Dispensers. ......................................... 58– 33

Chapter 6 Installation of LP-Gas Systems ...................... 58– 33

6.1 Scope. ....................................................................... 58– 33

6.2 Location of Containers. .......................................... 58– 33

6.3 Location of Containers Not Connected for Use. .. 58– 33

6.4 Container Separation Distances. ............................ 58– 34

6.5 Other Container Location Requirements. ............ 58– 35

6.6 Installation of Containers with Attached

Supports. .................................................................. 58– 36

6.7 Location of Transfer Operations. .......................... 58– 36

6.8 Installation of Containers. ...................................... 58– 37

6.9 Installation of Container Appurtenances. ............. 58– 41

6.10 Regulators. .............................................................. 58– 42

6.11 Piping Systems. ........................................................ 58– 43

6.12 Remote Shutoff Actuation. ..................................... 58– 46

6.13 Internal Valves. ........................................................ 58– 46

6.14 Emergency Shutoff Valves. ..................................... 58– 46

6.15 Hydrostatic Relief Valve Installation. ..................... 58– 47

6.16 Testing New or Modified Piping Systems. ............ 58– 47

6.17 Leak Check for Vapor Systems. ............................. 58– 47

6.18 Installation in Areas of Heavy Snowfall. ................ 58– 47

6.19 Corrosion Protection. ............................................. 58– 47

6.20 Equipment Installation. .......................................... 58– 48

6.21 Bulk Plant and Industrial Plant LP-Gas Systems. . 58– 48

6.22 LP-Gas Systems in Buildings or on Building Roofs

or Exterior Balconies. ............................................. 58– 49

6.23 Installation of Appliances. ...................................... 58– 53

6.24 Vaporizer Installation. ............................................ 58– 54

6.25 Ignition Source Control. ........................................ 58– 55

6.26 LP-Gas Systems on Vehicles (Other Than Engine

Fuel Systems). .......................................................... 58– 58

6.27 Vehicle Fuel Dispenser and Dispensing Systems. . 58– 60

6.28 Containers for Stationary Engines. ........................ 58– 61

6.29 Fire Protection. ....................................................... 58– 61

6.30 Alternate Provisions for Installation of ASME

Containers. .............................................................. 58– 62

Chapter 7 LP-Gas Liquid Transfer ................................. 58– 63

7.1 Scope. ....................................................................... 58– 63

7.2 Operational Safety. .................................................. 58– 63

7.3 Venting LP-Gas to Atmosphere. ............................. 58– 65

7.4 Quantity of LP-Gas in Containers. ......................... 58– 66

Chapter 8 Storage of Cylinders Awaiting Use, Resale, or Exchange .................................................... 58– 69

8.1 Scope. ....................................................................... 58– 69

8.2 General Provisions. ................................................. 58– 69

8.3 Storage Within Buildings. ....................................... 58– 70

8.4 Storage Outside of Buildings. ................................ 58– 71

8.5 Fire Protection and Electrical Area

Classification. ........................................................... 58– 72

8.6 Automated Cylinder Exchange Stations. ............... 58– 72

Chapter 9 Vehicular Transportation of LP-Gas ............. 58– 72

9.1 Scope. ....................................................................... 58– 72

9.2 Electrical Requirements. ........................................ 58– 72

9.3 Transportation in Portable Containers. ................. 58– 72

9.4 Transportation in Cargo Tank Vehicles. ................ 58– 73

9.5 Trailers, Semitrailers, and Movable Fuel Storage

Tenders, Including Farm Carts. ............................. 58– 75

9.6 Transportation of Stationary Containers to and

from Point of Installation. ...................................... 58– 75

9.7 Parking and Garaging Vehicles Used to Carry LP-

Gas Cargo. ............................................................... 58– 76

Chapter 10 Buildings or Structures Housing LP-Gas Distribution Facilities ..................................... 58– 76

10.1 Scope. ....................................................................... 58– 76

10.2 Separate Structures or Buildings. .......................... 58– 76

10.3 Attached Structures or Rooms Within Structures. 58– 77

Chapter 11 Engine Fuel Systems ....................................... 58– 77

11.1 Scope. ....................................................................... 58– 77

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

LIQUEFIED PETROLEUM GAS CODE58-6

11.2 Training. .................................................................. 58– 77

11.3 Containers. .............................................................. 58– 78

11.4 Container Appurtenances. ..................................... 58– 79

11.5 Quantity of LP-Gas in Engine Fuel Containers. .... 58– 80

11.6 Carburetion Equipment. ........................................ 58– 80

11.7 Piping, Hose, and Fittings. ..................................... 58– 80

11.8 Installation of Containers and Container

Appurtenances. ....................................................... 58– 81

11.9 Installation in Interior of Vehicles. ........................ 58– 82

11.10 Pipe and Hose Installation. .................................... 58– 83

11.11 Equipment Installation. .......................................... 58– 83

11.12 Marking. .................................................................. 58– 83

11.13 Industrial (and Forklift) Trucks Powered by LP-

Gas. ........................................................................... 58– 83

11.14 General Provisions for Vehicles Having Engines

Mounted on Them (Including Floor Maintenance Machines). ........................................ 58– 84

11.15 Engine Installation Other Than on Vehicles. ....... 58– 84

11.16 Garaging of Vehicles. .............................................. 58– 84

Chapter 12 Motor Vehicles Intended for Over-the-Road Use or Designed to Transport Passengers and are Fueled by LP-Gas .............................. 58– 84

12.1 Scope. ....................................................................... 58– 84

12.2 Definitions. .............................................................. 58– 85

12.3 Commissioning Vehicles. ........................................ 58– 85

12.4 ASME Containers, Materials, and Equipment. ..... 58– 85

12.5 LP-Gas Fuel Systems. ............................................... 58– 88

12.6 Electrical Installation. ............................................. 58– 92

12.7 Installation of Pipe, Tubing, and Hose. ................. 58– 93

12.8 Protection of Pipe, Tube, and Hose. ...................... 58– 93

12.9 Testing of Piping, Tubing, Hose, and Fittings. ...... 58– 93

12.10 LP-Gas Liquid and Vapor Injectors. ....................... 58– 94

12.11 Fuel Rails and Distribution Blocks. ........................ 58– 94

12.12 Vaporizer/Regulator Systems. ................................ 58– 94

12.13 Fuel Lockoffs. ......................................................... 58– 94

12.14 Servicing, Parking, and Display of Vehicles

Indoors. ................................................................... 58– 94

Chapter 13 Refrigerated Containers ................................ 58– 95

13.1 Construction and Design of Refrigerated

Containers. .............................................................. 58– 95

13.2 Marking on Refrigerated LP-Gas Containers. ....... 58– 95

13.3 Container Installation. ............................................ 58– 95

13.4 Refrigerated LP-Gas Container Instruments and

Controls. .................................................................. 58– 96

13.5 Refrigerated LP-Gas Container Impoundment. ... 58– 96

13.6 Inspection and Testing of Refrigerated LP-Gas

Containers and Systems. ......................................... 58– 97

13.7 Container Siting. ..................................................... 58– 97

13.8 Relief Devices. ......................................................... 58– 98

Chapter 14 Marine Shipping and Receiving ..................... 58– 99

14.1 Scope. ....................................................................... 58– 99

14.2 Piers. ........................................................................ 58– 99

14.3 Pipelines. ................................................................. 58– 100

14.4 Inspections Prior to Transfer. ................................. 58– 100

Chapter 15 Operations and Maintenance ........................ 58– 101

15.1 Scope. ....................................................................... 58– 101

15.2 Operating Requirements. ....................................... 58– 101

15.3 Maintenance. ........................................................... 58– 101

Chapter 16 Pipe and Tubing Sizing Tables ...................... 58– 102

16.1 Sizing Pipe and Tubing. .......................................... 58– 102

Annex A Explanatory Material ...................................... 58– 118

Annex B Properties of LP-Gases .................................. 58– 132

Annex C Design, Construction, and Requalification of DOT (ICC) Cylinders ................................ 58– 134

Annex D Design of ASME and API-ASME Containers 58– 136

Annex E Pressure Relief Devices ................................. 58– 138

Annex F Liquid Volume Tables, Computations, and Graphs ............................................................. 58– 139

Annex G Wall Thickness of Copper Tubing ................. 58– 142

Annex H Procedure for Torch Fire and Hose Stream Testing of Thermal Insulating Systems for LP-Gas Containers .......................................... 58– 143

Annex I Container Spacing .......................................... 58– 143

Annex J Sample Ordinance Adopting NFPA 58 ......... 58– 146

Annex K Burial and Corrosion Protection for Underground and Mounded ASME Containers ....................................................... 58– 147

Annex L Suggested Methods of Checking for Leakage .......................................................... 58– 147

Annex M A Suggested Container Purging Procedure .. 58– 148

Annex N Informational References ............................. 58– 148

Index ......................................................................... 58– 151

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

ADMINISTRATION 58-7

NFPA 58

Liquefied Petroleum Gas Code

2017 Edition

IMPORTANT NOTE: This NFPA document is made available for use subject to important notices and legal disclaimers. These notices and disclaimers appear in all publications containing this document and may be found under the heading “Important Notices and Disclaimers Concerning NFPA Standards.” They can also be viewed at www.nfpa.org/disclaimers or obtained on request from NFPA.

UPDATES, ALERTS, AND FUTURE EDITIONS: New editions of NFPA codes, standards, recommended practices, and guides (i.e., NFPA Standards) are released on scheduled revision cycles. This edition may be superseded by a later one, or it may be amended outside of its scheduled revision cycle through the issuance of Tenta‐ tive Interim Amendments (TIAs). An official NFPA Standard at any point in time consists of the current edition of the document, together with all TIAs and Errata in effect. To verify that this document is the current edition or to determine if it has been amended by TIAs or Errata, please consult the National Fire Codes® Subscription Service or the “List of NFPA Codes & Standards” at www.nfpa.org/docinfo.

In addition to TIAs and Errata, the document information pages also include the option to sign up for alerts for individual documents and to be involved in the development of the next edition.

NOTICE: An asterisk (*) following the number or letter designating a paragraph indicates that explanatory material on the paragraph can be found in Annex A.

A reference in brackets [ ] following a section or paragraph indicates material that has been extracted from another NFPA document. As an aid to the user, the complete title and edition of the source documents for extracts in mandatory sections of the document are given in Chapter 2 and those for extracts in informational sections are given in Annex N. Extracted text may be edited for consistency and style and may include the revision of internal paragraph references and other references as appropriate. Requests for interpretations or revisions of extracted text shall be sent to the technical committee respon‐ sible for the source document.

Information on referenced publications can be found in Chapter 2 and Annex N.

Chapter 1 Administration

1.1* Scope. This code shall apply to the storage, handling, transportation, and use of liquefied petroleum gas (LP-Gas).

1.2 Purpose. (Reserved)

1.3 Application.

1.3.1 Application of Code. This code shall apply to the opera‐ tion of all LP-Gas systems, including the following:

(1) Containers, piping, and associated equipment, when delivering LP-Gas to a building for use as a fuel gas.

(2) Highway transportation of LP-Gas.

(3) The design, construction, installation, and operation of marine terminals whose primary purpose is the receipt of LP-Gas for delivery to transporters, distributors, or users, except for marine terminals associated with refineries, petrochemicals, gas plants, and marine terminals whose purpose is the delivery of LP-Gas to marine vessels.

(4)* The design, construction, installation, and operation of pipeline terminals that receive LP-Gas from pipelines under the jurisdiction of the U.S. Department of Trans‐ portation (DOT) whose primary purpose is the receipt of LP-Gas for delivery to transporters, distributors, or users.

Coverage shall begin downstream of the last pipeline valve or tank manifold inlet.

1.3.2 Nonapplication of Code. This code shall not apply to

the following:

(1) Frozen ground containers and underground storage in caverns, including associated piping and appurtenances used for the storage of LP-Gas

(2) Natural gas processing plants, refineries, and petro‐ chemical plants

(3) LP-Gas at utility gas plants (including refrigerated stor‐ age) (see NFPA 59)

(4)* Chemical plants where specific approval of construction and installation plans is obtained from the authority having jurisdiction

(5)* LP-Gas used with oxygen (6)* The portions of LP-Gas systems covered by NFPA 54

(ANSI Z223.1) where NFPA 54 (ANSI Z223.1) is adop‐ ted, used, or enforced

(7) Transportation by air, rail, or water under the jurisdic‐ tion of the DOT

(8)* Marine fire protection

(9) Refrigeration cycle equipment and LP-Gas used as a refrigerant in a closed cycle

(10) The manufacturing requirements for recreational vehi‐ cle LP-Gas systems that are addressed by NFPA 1192

(11) Propane vehicle fuel dispensers located at multiple fuel refueling stations (see NFPA 30A)

1.4 Retroactivity. The provisions of this code reflect a consen‐ sus of what is necessary to provide an acceptable degree of protection from the hazards addressed in this code at the time it was issued.

1.4.1 Unless otherwise specified, the provisions of this code shall not apply to facilities, equipment, appliances, structures, or installations that existed or were approved for construction or installation prior to the effective date of the code. Equip‐ ment and appliances include stocks in manufacturers' storage, distribution warehouses, and dealers' storage and showrooms in compliance with the provisions of this code in effect at the time of manufacture. Where specified, the provisions of this code shall be retroactive.

1.4.2 In those cases where the authority having jurisdiction

determines that the existing situation presents a distinct hazard to life and property, the authority having jurisdiction shall be permitted to apply any portions of this code retroactively.

1.4.3 Where the application of the retroactivity requirements of this code are determined to be impractical in the judgment of the authority having jurisdiction, alternate requirements that provide a reasonable degree of safety shall be provided by the authority having jurisdiction.

1.5 Equivalency. Nothing in this code is intended to prevent

the use of systems, methods, or devices of equivalent or supe‐ rior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this code.

1.5.1 Technical documentation shall be submitted to the

authority having jurisdiction to demonstrate equivalency.

Copyright 2018 National Fire Protection Association (NFPA®). Licensed, by agreement, for individual use and download on 08/02/2018 to US Air Force Civil Engineer Ce. No other reproduction or transmission in any form permitted without written permission of NFPA®. For inquiries or to report unauthorized use, contact licensing@nfpa.org. This NFCSS All Access subscription expires on August 31, 2018.

LIQUEFIED PETROLEUM GAS CODE58-8

1.5.2 The system, method, or device shall be approved for the intended purpose by the authority having jurisdiction.

1.6 Units and Formulas. (Reserved)

1.7 Enforcement. This code shall be administered and

enforced by the authority having jurisdiction designated by the governing authority. (See Annex J for sample wording for enabling legislation.)

Chapter 2 Referenced Publications

2.1 General. The documents or portions thereof listed in this chapter are referenced within this code and shall be consid‐ ered part of the requirements of this document.

2.2 NFPA Publications. National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 10, Standard for Portable Fire Extinguishers, 2013 edition.

NFPA 13, Standard for the Installation of Sprinkler Systems, 2016 edition.

NFPA 15, Standard for Water Spray Fixed Systems for Fire Protec‐ tion, 2017 edition.

NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2017 edition.

NFPA 30, Flammable and Combustible Liquids Code, 2015 edition.

NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair

Garages, 2015 edition.

NFPA 51B, Standard for Fire Prevention During Welding,…