SOSTAS (stand-off surveillance and target acquisition system)

SOSTAS stands for stand-off surveillance and target acquisition system. It is a NATO military abbreviation, and NATO's glossary of acronyms and abbreviations defines it as a system for surveillance and target acquisition conducted from a stand-off distance.

The glossary, published as AAP-15, also gives the French equivalent: système de surveillance et d'acquisition d'objectif à distance de sécurité. You can read the entry in the NATO glossary of acronyms and abbreviations (AAP-15). Canadian suppliers who work with defence requirements will meet this kind of abbreviation in allied documents, so the exact expansion is worth knowing.

How NATO defines SOSTAS

The AAP-15 glossary treats SOSTAS as a defined acronym with an English expansion and a French equivalent. Both languages matter in Canada, where federal documents are bilingual and the French form is the one a francophone reader or translator will look for.

• English expansion: stand-off surveillance and target acquisition system.
• French equivalent: système de surveillance et d'acquisition d'objectif à distance de sécurité.
• Designation: the entry carries the tag [NASG], the NATO Army Standardization Group.

The NASG tag tells you where the term sits inside NATO's standardization structure. It is an army-sector term. The glossary entry is the reference for what the acronym stands for, and it is the source this page relies on.

SOSTAS beside SOSTAR and SOTAS

NATO's glossary lists two close relatives of SOSTAS. Reading the three together helps a bid team avoid mixing them up.

• SOSTAR means stand-off surveillance and target acquisition radar.
• SOTAS means stand-off target acquisition system.
• SOSTAS means stand-off surveillance and target acquisition system.

The differences are small in spelling and real in meaning. SOSTAR names a radar. SOTAS names a target acquisition system without the surveillance element. SOSTAS names a system that covers both surveillance and target acquisition. When a document uses one of these acronyms, copy it exactly and do not substitute another, because NATO lists each as its own entry.

Where to confirm NATO terminology

NATO maintains NATOTerm, its official terminology database. It contains non-classified military terminology and other terminology relevant to NATO. Use it alongside the AAP-15 glossary when you need to check how NATO words a term.

The glossary is the right place to settle what an acronym stands for. NATOTerm is the right place to look at wider NATO terminology. Between them, a bid writer can confirm an expansion before it goes into a proposal, a compliance matrix or a technical response.

What SOSTAS means for a supplier bidding on Canadian public contracts

SOSTAS is a NATO term, so its meaning comes from NATO's glossary and not from a Canadian procurement rule. If a solicitation uses it, treat the NATO definition as your starting point and read the solicitation's own wording and definitions closely. Where the document defines the term differently or adds requirements, those requirements govern your bid.

Federal tender opportunities are published on CanadaBuys, the Government of Canada's tender-opportunity service. Past contracting activity can be reviewed through the Government of Canada's contracts search. Use the full expansion and the related acronyms as search terms, since a notice may spell the term out or use a different NATO abbreviation.

Keep the English and French forms from the glossary in your bid vocabulary. Using the exact NATO wording in both official languages keeps your response consistent with the source and easy for evaluators to check.