# Justification & Approval for Antarctic Support Contract Extension

Canonical: https://abierto.us/opportunities/ascext2

- Solicitation number: ASC_Ext2
- Notice type: Special notice
- Status: Closed. Deadline was February 7, 2026 at 1:00 PM EST
- Department: National Science Foundation
- Contracting office: Office of Polar Programs (490609)
- NAICS: 561210 Facilities Support Services
- Product or service code: M1HA Operation Of Government-Owned Contractor-Operated (Goco) R&D Facilities
- Place of performance: N/A, ATA
- First posted: January 8, 2026
- Last posted: January 8, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/1648ba9c9ac843d8835ca6587441ae1b/view

## Description

The National Science Foundation (NSF) is releasing the attached Justification & Approval (J&A) for Other than Full and Open Competition. This J&A concerns extension of the period of performance end date for the Antarctic Support Contract (ASC) (#NSFDACS1219442) from 30 September 2026 to 30 September 2027. This J&A leverages the authority of FAR 6.302-3; “Industrial mobilization; engineering, developmental, or research capability; or expert services”.

Consistent with the requirements of FAR 6.305, this J&A is being made publicly available. Comments concerning this J&A may be submitted to the NSF email alias provided as part of this notice. All costs associated with responding to this release will be solely at the interested party’s expense and any information provided under this release is purely voluntary. Not responding to this release does not preclude participation in any future competition or participation in future subcontract opportunities which may arise with NSF.

## Publications

- January 8, 2026: Special notice, due February 7, 2026 at 1:00 PM EST. Notice 1648ba9c9ac843d8835ca6587441ae1b. https://sam.gov/workspace/contract/opp/1648ba9c9ac843d8835ca6587441ae1b/view

## Points of contact

- NSF DACS Antarctic Support Contract, dacs.asc@nsf.gov

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/ascext2.