Automotive Service Association

American Statistical Association

American Sociological Association

Acoustical Society of America

American Society of Anesthesiologists

American Sociey on Aging

Advertising Standards Authority

American Scientific Affiliation

American Subcontractors Association

American Supply Association

Autism Society of America

American Studies Association

American Society of Appraisers

American Sand Association

Atlantic Southeast Airlines

American Soybean Association

Applied Science Associates

Applied Systems Associates

African Studies Association

American Society of Agronomy

Alberta Snowmobile Association

Archery Shooters Association

Amateur Softball Association

America Supporting Americans

Alberta Snowboarding Association

American Sportfishing Association

Americans for Safe Access

Acoustical Society of America

Alberta Soccer Association

Australian Society of Anaesthetists

Astronomical Society of Australia

American Screenwriters Association

American Stroke Association

to name but a few…..

CLU could potentially stand for:

Chartered Life Underwriter

California Lutheran University

Christian Leadership University

Custom Lures Unlimited

Canadian Labour Union

Civil Liberties Union

to name but a lesser few…my fingers were getting sore.

http://www.acronymfinder.com/af-query.asp?Acronym=asa&Find=find&string=exact

http://www.acronymfinder.com/af-query.asp?Acronym=clu&Find=find&string=exact

HTH

CLU = Command launch unit