AAA/AA stands for Airframe Airworthiness Assurance/Aging Aircraft (US NASA)
AA2A stands for Artists Access to Art Colleges (UK)
AA/SDBCE stands for Assistant Administrator for Small Disadvantaged Business Certification and Eligibility (US Small Business Administration)
AA/EEO stands for Affirmative Action/Equal Opportunity Employment
AA2 stands for Amnion Antigens 2
AA/D stands for Alcohol Abuse/Dependence
AAA-CPA stands for American Association of Attorney-Certified Public Accountants
AAAA&I stands for American Academy of Allergy, Asthma, and Immunology
AA/DW stands for Aggravated Assault with a Deadly Weapon
AA2000 stands for Aeropuertos Argentina 2000 SA (Argentinian airport operator)