The American Institute of Architects (AIA) is a three-tiered organization. Membership is required at the local, state, and national levels. Local component affiliation is assigned by zip code based on an individual's business or home address. Membership dues are calculated on a calendar year, January through December. New member dues are prorated quarterly. You must contact your local AIA component or AIA Information Central, 800-242-3837, to determine your annual membership dues.
You can join AIA online or download an application from their website.
To renew your AIA membership, you can start the process here.