AAAS has nearly 120,000 individual and institutional members and 262 affiliates, serving 10 million scientists in fields ranging from plant biology to dentistry.

Highlights of AAAS governance follows:

• Board of Directors
  Responsible for the affairs of the Association.
  

• Council
  86 Council members meet annually to establish general policies.
  

• Committee on Council Affairs
  Meets twice yearly, serving as executive committee of the Council.
  

• Elected Officers
  Members choose AAAS elective officers each year including the president-elect, the president, the chairman of the board and members of the board.
  

• Committee on Nominations
  Each year, this committee prepares a slate of candidates for a general election of association officers.
  

• 24 Sections
  Correspond to fields of interest among AAAS members, from specific fields like physics, biology and chemistry to general interest in science.
  

• Four Regional Divisions
  Elect their own officers and conduct meetings for members in the Arctic; Caribbean; Pacific; and Southwestern and Rocky Mountain regions.
  

• AAAS Membership
  Membership is open to all, and guarantees a weekly subscription to Science. As of 2002, membership will also include access to the journal's many online products.
  

Association Activities
AAAS programs fall within four areas:

• Science and Policy Programs

• International Programs

• Education and Human Resources
  

• Project 2061