N3220525R6003 - surtass-E RFP

***21 October 2026*** Amendment 0008 is hereby issued updating Attachment 4 (Basic Pricing Data Sheet) to update posted DLA fuel prices as of 01 October 2026 and extending the due date from 22 October 2026 1:00pm Local Time (EDT) to 05 November 2026 1:00pm Local Time (EDT).

***05 October 2026*** AMENDMENT 0007 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 08 OCT 2026, 1:00pm LOCAL TIME (EDT) TO 22 OCT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0007 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 05 OCT 2026.

***22 September 2026*** Amendment 0006 is hereby issued updating Attachment 2 (Wage Determination) and extending the due date from 24 September 2026 1:00pm Local Time (EDT) to 08 October 2026 1:00pm Local Time (EDT).

***08 September 2026*** AMENDMENT 0005 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 10 SEPT 2026, 1:00pm LOCAL TIME (EDT) TO 24 SEPT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0005 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 08 SEPT 2026.

***26 August 2026*** AMENDMENT 0004 IS HEREBY ISSUED UPDATING THE DUE DATE TO 10 SEPT 2026. ADDITIONALLY, SEE UPDATED PROFORMA ATTACHMENT AND SF1449_0004 POSTED ON 26 AUGUST 2026.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***05 October 2026*** AMENDMENT 0007 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 08 OCT 2026, 1:00pm LOCAL TIME (EDT) TO 22 OCT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0007 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 05 OCT 2026.

***22 September 2026*** Amendment 0006 is hereby issued updating Attachment 2 (Wage Determination) and extending the due date from 24 September 2026 1:00pm Local Time (EDT) to 08 October 2026 1:00pm Local Time (EDT).

***08 September 2026*** AMENDMENT 0005 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 10 SEPT 2026, 1:00pm LOCAL TIME (EDT) TO 24 SEPT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0005 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 08 SEPT 2026.

***26 August 2026*** AMENDMENT 0004 IS HEREBY ISSUED UPDATING THE DUE DATE TO 10 SEPT 2026. ADDITIONALLY, SEE UPDATED PROFORMA ATTACHMENT AND SF1449_0004 POSTED ON 26 AUGUST 2026.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***22 September 2026*** Amendment 0006 is hereby issued updating Attachment 2 (Wage Determination) and extending the due date from 24 September 2026 1:00pm Local Time (EDT) to 08 October 2026 1:00pm Local Time (EDT).

***08 September 2026*** AMENDMENT 0005 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 10 SEPT 2026, 1:00pm LOCAL TIME (EDT) TO 24 SEPT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0005 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 08 SEPT 2026.

***26 August 2026*** AMENDMENT 0004 IS HEREBY ISSUED UPDATING THE DUE DATE TO 10 SEPT 2026. ADDITIONALLY, SEE UPDATED PROFORMA ATTACHMENT AND SF1449_0004 POSTED ON 26 AUGUST 2026.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***08 September 2026*** AMENDMENT 0005 IS HEREBY ISSUED UPDATING THE DUE DATE FROM 10 SEPT 2026, 1:00pm LOCAL TIME (EDT) TO 24 SEPT 2026, 1:00pm LOCAL TIME (EDT). SEE UPDATED SF1449 PER AMENDMENT 0005 ALONG WITH THE SF-30 FOR THIS AMENDMENT ADDED ON 08 SEPT 2026.

***26 August 2026*** AMENDMENT 0004 IS HEREBY ISSUED UPDATING THE DUE DATE TO 10 SEPT 2026. ADDITIONALLY, SEE UPDATED PROFORMA ATTACHMENT AND SF1449_0004 POSTED ON 26 AUGUST 2026.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***26 August 2026*** AMENDMENT 0004 IS HEREBY ISSUED UPDATING THE DUE DATE TO 10 SEPT 2026. ADDITIONALLY, SEE UPDATED PROFORMA ATTACHMENT AND SF1449_0004 POSTED ON 26 AUGUST 2026.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***05 August 2026*** Amendment A0003 is hereby issued updating and re-opening the solicitation. See attachments for details.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***02 OCT 2025. RFP Amendment A0002 is hereby issued. (Attachment 16 has been added to address questions submitted by potential offerors). Updated versions of Attachment 3, Attachment 6, Attachment 7, Attachment 8, Attachment 9, Attachment 12, Attachment 13, and Attachment 14 have been uploaded. See attached [SF-30] and [SF1449] for full details.

 Nothing from the SF1449 Changed from A0001 to A0002 and the only change from the orginial posting is the issue date and due date (Box 6 and 8)  as outlined in A0001. All other things remain unchanged. 

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

***29 SEP 2025. RFP Amendment A0001 is hereby issued to update the RFP Issue Date and Response Date. See attached [SF-30] for full details.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.

See SF1449 and Related Attachments for details

The solicitation will be a fixed-priced time charter with reimbursable elements, with a performance period of one (1) year base period and will be followed by three (3) 1-year option periods and one 11-month option period.  The solicitation will require a time charter of one US flagged or foreign flagged vessel (to be reflagged US prior to delivery of vessel) required to tow an acoustic array in support of U.S. Navy Operations. The vessel will tow a passive acoustic monitoring system, between 4-6 knots, 24hrs/day for up to a 60-day event. The ship will need to be able to tow on a directed heading within 5 degrees for extended periods at slow speed. Because of the type of acoustic system employed, the ability of the vessel to maintain heading stability is critical. The vessel must be capable of worldwide operations, including support in all ocean basins of the world from the Artic to the Antarctic during all periods of time. The vessel is expected to operate in open water in the vicinity of the Marginal Ice Zone (MIZ) and must be capable of surviving encounter with young open ice, as specified by ABS, Ice Class D0.