Submarine Peculiar Special and Support Equipment (PSSE) Support Services for the Mid-Atlantic Regional Maintenance Center in Norfolk, VA. This requirement will be competed under the Seaport-NxG Multiple Award Contract (MAC) among all MAC holders in all zones. All Clauses contained in the SeaPort-NxG Multiple Award IDIQ contract are hereby incorporated in full by reference herein and are applicable to this solicitation/contract and are supplemented herein. Only clauses and provisions requiring fill-ins or clauses unique to this task order have been included in full text in this solicitation. All respondents should indicate their current Seaport-NxG contract number as part of their submission. Amendment 0001: The purpose of this amendment is to publish updates to the solicitation in response to questions provided by prospective offerors and answer provided by the Government. The solicitation amendment and the conformed copy of the solicitation through this amendment can be found in the attachments section of this posting. In addition, the following attachments have been updated: CDRLs A001 -A003, QASP, Wage Determinations, and the Price Proposal Spreadsheet. A copy of all questions answered by the Government is also provided in the attachments section.