Any woman is eligible for membership who is no less than eighteen years of age and can prove lineal, blood line descent from an ancestor who aided in achieving American independence. She must provide documentation for each statement of birth, marriage, and death.

Admission to membership in the NSDAR is either by invitation through a chapter in your state organization (or Unit Overseas), or as a Member-At-Large. No chapter may discriminate against an applicant on the basis of race or creed.
 
Acceptable Service
The National Society reserves the right to determine the acceptability of all service and proof thereof. The National Society accepts service, with some exceptions, for the period between 19 April 1775 (Battle of Lexington) and 26 November 1783 (withdrawal of British troops from New York). For a complete list of acceptable service please visit the DAR web site.