Enclosure 1 for A0003_A0003 Changes.docx

Enclosure 1 for Amendment 0003 The following changes have been made to the SF1449 as per A0003:

Box 5 – laydays have been changed and extended;

Now 24 JAN 2027 – 15 APR 2027.

(tailored pursuant to FAR 12.205(b)) See highlighted areas (a), (b), (g), (i)(6), and (t)

PART IV

(& General Definitions)

Removed: 52.203-17, 52.204-2. 52.204-8, 52.204-16, 52.204-18, 52.204-21, 52.204-23, 52.204-25, 52.204-27, 52.204-30, 52.212-5, 52.222-9, 52.222-51, 52.222-53, 52.223-10, 52.225-13, 52.225-26, 52.226-6, 52.240-1, 252.204-7020, 252.215-7008, 252.215-7016, 252.219-7003, 252.225-7043, 252.227-7015, 252.227-7037, 252.242-7005, 252.244-7000

Removed: 52.204-24, 52.204-26, 52.223-22, 52.225-25, 252.209-7001, 252.209-7998, 252.247-7026

In addition to adding Attachment 1_SPECIALTIME PROFORMA 2026 (2-26), attachments were re-numbered to follow the new PROFORMA attachment format, and have been updated as shown in the table below:

Attachment 6_ PWS (Performance Work Statement) Attachment 7_ PWS (Performance Work Statement) (See red text for all changes) Item 1.2 - clarification language added.

Item 1.3 – reduced from 60-day to 45-day Changes under Item 1.7: Requirements:

Item 1(f) – language added.

Item 1(g)3 - clarification language added.

Item1(l)/(l)3 – clarification language added.

Item 2(a) – clarification language added and reduced from 60-day to 45-day.

Item 2(d)(1) – clarification language added, sea state minimum reduced.

Item 2(g) – added “of” (minor edit) Item 3(a) removed language referring to items proposed under the RFP.

Item 3(d)(f)(g) – clarification of government furnished equipment added Item 3(r) completely rewritten for clarity of expected requirement Item 3(t) – minor edits Item 4(a) changed “should” to “shall” for clarification purposes.

Items 4(a) and 4(c) were re-written to establish the minimum requirement as Part X of the RFP and Section 4 of the PWS contained conflicting information.

Diagram 1c - Note has been added below Diagram 3 - Note #4 and an additional drawing has been added.

(used to be within the PROFORMA in ePS)

*Note: references to specific attachments have likely been renumbered since submitting the Q&As.

Additionally, this amendment answers questions submitted during discussions by initial offerors for clarification purposes as shown below:

QUESTION 18: Please confirm that it is acceptable if the ABS UWN notation as referenced throughout the solicitation is substituted for an equivalent notation from an IACS classification society other than ABS.

Response: Yes. Please see updated language under PWS 4(a), as well as 5(c)(1) under Part X, Technical Proposal and the Technical Offer Worksheet.

QUESTION 19: Solicitation Part X TP (5)(c)(1) states, in part, that “Offeror shall provide certification that vessel meets the American Bureau of Shipping (ABS) Guide for the Classification Notation – Underwater Noise (UWN) Requirements for Research Vessels subsection 3/5 radiated noise requirement while towing at 5 knots.” Additionally, item 4(a) under PWS section 1.7 Requirements states that “During normal towing operations (4-6 knots), the ship radiated noise should not exceed the requirements as set forth in the ABS Guide for the Classification Notation – Underwater Noise (July 2018), Underwater Noise (UWN) requirements for Research Vessels, subsection 3/5.” Neither of the aforementioned references nor any other section of the solicitation appear to expressly require the vessel to obtain/possess the ABS UWN notation (or other classification society equivalent), and have the notation endorsed on the vessel’s Classification Certificate. Please clarify if it is required for the vessel to actually obtain/possess the ABS UWN notation or equivalent notation from an IACS classification society other than ABS.

Response: Please see updated language under PWS 4(a), as well as 5(c)(1) under Part X, Technical Proposal and the Technical Offer Worksheet.

QUESTION 20: PWS Section 4(c) provides some allowance for excesses to the specification. Specifically, it states the following: “Ship radiated noise profile excursions are permissible if the broadband noise source is no greater than 3dB, and, or any narrow band source is no greater than15dB above the requirements of part 4(a) [ABS UWN-R]. No more than 5 narrowband sources greater than 15dB will be considered acceptable. If at any time, the contractor is found to not meet the noise requirements, the Contractor must clearly demonstrate how the noise source can be mitigated. The determination of whether or not a source is or can be adequately mitigated is at the sole discretion of the government.”

A) Please clarify how this tolerance is intended to be applied in practice? The allowance for up to five tonal components 15 dB above the limit seems to represent a relatively large margin compared with the overall stringent noise limits.

B) The wording of this requirement is also somewhat challenging. It is not clear if the 3 dB broadband requirement needs to be met in addition to or instead of the 15 dB narrowband requirement. Furthermore, the ABS UWN-R limit is a one-third octave band limit, and not directly comparable to narrowbands. Please clarify if both the broadband and narrowband requirements need to be met.

C) Please also clarify if the narrowband level is to be directly compared to the numerical value of the one-third octave band limit at any specific frequency.

Response: Please see updated language under PWS 4(a) and 4(c).

QUESTION 21: Discussions notice Part X TP (5)(c)(4)(b) states “ Offeror needs to provide a drawing that displays that the measurement between the aft most section of the winch frame is no greater than twelve (12) feet (3.66m) forward of the overboarding platform.” Please clarify to which specific part of the overboarding platform should be used as the reference point for this measurement (i.e. the transom of the vessel, the forward edge of the winch handling system, etc.).

Response: See updated Note in red text under Diagram 1c.

QUESTION 22: PWS Diagrams 1a-1f. Please confirm that the stern chute shown in diagrams 1a-1f is provided by the Government as GFE.

Response: The stern chute is GFE as now indicated in 5(c)(4)(a), 5(c)(6) and 5(c)(7), and PWS 3(d), 3(f), and 3(g).

QUESTION 23: Discussions notice Part X TP (5)(c)(4)(c) states ” Offeror needs to provide a drawing that shows that the PAM structure and supports location does not exceed a forward distance of 50 feet from the axial center of the winch.” Please clarify which specific part of the PAM structure and supports should be used as the reference point for this measurement.

Response: Please see updated SPECIALTIME PROFORMA language in red text under 5(c)(4)(c) under Part X, Technical Proposal and 5(c)(4)(c) in the Technical Offer Worksheet.

QUESTION 24: PWS Diagram 3. Please advise the clearance between the bottom of the Vans and vessel’s deck after the Government-provided mounting hardware is installed/welded into place.

Response: Please see Note 4 in red text with supplemental drawing added below Diagram 3.