service requirement

defense requirement review (DRR)

Equipment Requirement Plan (ERP)

information requirement (IR)

material requirement list

military assistance requirement

military requirement

operational requirement (OR)

principal military requirement (PMR)

standardization requirement

local requirement

Statement of Requirement (SOR)

tentative specific operational requirement

design and operational requirement

requirement

meet a requirement

age-in-grade requirement

M-day materiel-requirement

readiness requirement

branch (military/service branch, armed service)

separate from active service / the service

Y service (Y-service) / Y-station

regional meteorological service/ regional weather service (RWS)

emergency service / emergency operations service

active military service

active service/ duty

administrative service

aerodrome control service

age limit for military service

air traffic control service

air traffic service (ATS)

air weather service detachment

airfield service detachment