The primary role of DGAQA is to provide QA coverage during various phases of the production/services viz Design & Development, Production, Up-gradation etc and to assure that the same meet the customers’ expectations. DGAQA is also involved in standardisation activities. The other services rendered are Capacity Assessment & Registration of Firms, Defect Investigations and Technical Consultancy to the Users, Ministry of Defence, Production and Design & Development Agencies.

The establishments under this organisation are spread all over the country in Defence Public Sector Undertakings, Ordnance Factories, DRDO Labs and Private Firms.

DGAQA is also the nodal agency for Missile System Quality Assurance Agency (MSQAA) and Strategic Systems Quality Assurance Group (SSQAG).

The Department functions through its Zones/ Field Establishments/ Detachments as pe the organisational structure.