Western Manufactured Housing Communities Association (WMA) is a nonprofit organization created in 1945 for the exclusive purpose of promoting and protecting the interests of owners, operators and developers of manufactured home communities in California. WMA assists its members in the operations of successful manufactured home communities in today's complex business and regulatory environment. WMA remains the largest organization of its kind in the nation. WMA continuously strives to dedicate your investment to program areas, which actively contribute toward the economic success of your business.