The Marin (California) of the American Association of Women, Inc (AAUW Marin) is a 501c4 nonprofit organization organized under the law of California as a corporation in 1958.   The CA entity number is C0364195 and taxpayer ID number is 94-6099633.

The original Articles creating the organization are filed with the Secretary of State of California.  The ByLaws of the branch are reviewed and updated periodically.  The last update was in May of 2017.