AAIA - Associate International Account… 
AAIB - Air Accidents Investigation Bra… 
AAOH - American Ancient Order of Hiber… 
AAPA - Association of Authorised Publi… 
ABC - Activity Based Costings 
ABC - Anti-social Behaviour Contract 
ABD - Apprentice Boys of Derry 
ABI - Association of British Investiga… 
ACA - Associate Chartered Accountant 
ACCA - Associate Chartered Certified A… 
ACCA - Association of Chartered Certif… 
ACEG - Association for Careers Educati… 
ACIArb - Associate of the Chartered In… 
ACIB - Associate of the Chartered Inst… 
ACIBS - Associate of the Chartered Ins… 
ACIBSE - Associate of the Chartered In… 
ACIM - Associate Member of the Charter… 
ACIOB - Associate of the Chartered Ins… 
ACMA - Associate Chartered Management… 
ACPA - Association of Certified Public… 
ACPO - Association of Chief Police Off… 
ACR - Area Control Room 
ADA - Anti-Discrimination Association 
ADC - Area Data Centre 
AIA - Anglo-Irish Agreement 
AIA - Association of International Acc… 
AIIC - Anglo-Irish Intergovernmental C… 
AIIC - Anglo-Irish Intergovernmental C… 
AIL - Anti-Internment League 
ALA - Associate of the Library Associa…