Glossary term
ACO1 (airspace control order)
TERM SUMMARY
ACO1 is the NATO abbreviation for airspace control order. NATO's glossary of acronyms lists it separately from ACO2, which means airspace coordination order.
- Why it matters
- ACO1 is the NATO abbreviation for airspace control order . A NATO glossary of acronyms and abbreviations, AAP-15, lists the abbreviation under that expansion.
- Category
- Canadian government procurement terminology
- Reference role
- This term page is designed to be linkable, crawlable, and easy to quote or summarize.
ACO1 is the NATO abbreviation for airspace control order. A NATO glossary of acronyms and abbreviations, AAP-15, lists the abbreviation under that expansion. The term belongs to NATO operational command-and-control vocabulary, not to Canadian procurement vocabulary.
The numeral in ACO1 matters. The same glossary lists ACO2 as airspace coordination order, so NATO treats the two as distinct abbreviations for distinct terms. A third use of ACO, Allied Command Operations, is unrelated to either. Reading the abbreviation correctly is the first step in reading any document that contains it.
How NATO's glossary defines ACO1
The NATO glossary AAP-15, Glossary of NATO acronyms and abbreviations, expands ACO1 as airspace control order. It is a bilingual English and French reference, and it is the source that separates ACO1 from ACO2.
NATO also maintains an official terminology database. The NATO Terminology Office, part of the NATO Standardization Office, runs it through NATOTerm. Bid teams who need the exact NATO wording for a defined term can start there.
ACO1, ACO2 and Allied Command Operations
Three readings of "ACO" circulate in NATO material, and they should not be mixed up:
- ACO1 means airspace control order.
- ACO2 means airspace coordination order.
- ACO on its own can also mean Allied Command Operations, the NATO command described on the NATO structure page for Allied Command Operations.
Allied Command Operations is an organization. An airspace control order is a type of order. When a document uses a bare "ACO", the surrounding text decides which meaning applies. When it uses the numbered forms, the numeral does.
The airspace control order in NATO interoperability documentation
NATO information-management documentation identifies the Airspace Control Order as ACO (F011). The NATO Interoperability Standards and Profiles baseline catalogue states that the Airspace Control Order is to be implemented using ADatP-3, NATO's standard for operational message formats.
This tells a technical reader two things. The airspace control order is handled as a formatted operational message, and it has its own identifier in NATO's message catalogue. Anyone working on systems that exchange NATO messages will meet the ACO (F011) designation and the ADatP-3 reference together.
What ACO1 means for a supplier bidding on Canadian public contracts
ACO1 is a terminology point, not a Canadian procurement requirement. Treat it as a defined NATO term. If it appears in a technical specification, statement of requirement or attached standard, confirm that it reads as airspace control order and not as airspace coordination order or Allied Command Operations, and align your response to that meaning.
Canadian suppliers can look for NATO-related work through CanadaBuys. The site publishes tender notices from PSPC, other Government of Canada organizations and NATO. It also states that NATO Support and Procurement Agency opportunities can be available to Canadian businesses because Canada is a NATO member. Search the tender opportunities listing by keyword, and read each notice's attached documents for how NATO terms and standards are used.