What is the full meaning of AASL? What does AASL stand for?

AASL stands for;

1AASLAmerican Association of School Librarians (American Library Association)
2AASLAmerican Association of School Libraries
3AASLAnti-Aircraft Searchlight (Australia)
4AASLAssociation of Architecture School Librarians
5AASLAthletic Association of Sri Lanka (est. 1922)
6AASLAGES Aircraft Sales and Leasing (AGES Group; Boca Raton, FL)
7AASLArkansas Association of School Librarians
8AASLAerospace and Autonomous Systems Laboratory