What does AA stand for?

MLA style: "AA." Acronym Finder . 2012. AcronymFinder.com 27 May. 2012 http://www.acronymfinder.com/Approved-Apparatus-(AA).html
Chicago style: Acronym Finder . S.v. "AA." Retrieved May 27 2012 from http://www.acronymfinder.com/Approved-Apparatus-(AA).html
APA style: AA. (n.d.) Acronym Finder. (2012). Retrieved May 27 2012 from http://www.acronymfinder.com/Approved-Apparatus-(AA).html

Approved Apparatus

This definition appears very rarely and is found in the following Acronym Finder categories:

Other Resources:

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Ape Alliance Applicant Assistance (DHS/FEMA) Application Activity Application Administrator Application Association Applied Aerodynamics (course) Appointing Authority Appropriate Action Appropriate Authority Approval Action		Approving Authority Approximate Absolute (temperature scale) Aptitude Area Arachidonic Acid Arboricultural Association (Hampshire, England) Archery Australia Architectural Association (London, England) Architecture d'Aujourd'hui (French: Architecture Today; magazine) Area of Action Argentum Astrum (Aleister Crowley's Mystical Fraternity)

Samples in periodicals archive:

Together with constructional and organisational measures, the explosion risk can be minimised by the choice of suitable, approved apparatus.

Skilled and accredited technicians apply MPI using medically approved apparatus and practice sterilization methods employed by hospitals and doctors.