With the exception of certain public officials, all able-bodied men and women over the age of 18 and not currently serving in the regular armed forces, and any former member of the regular armed forces, are by law already members of the "unorganized" militia. See this article that explains the concept
Laws requiring militia participation are no longer enforced.
Membership in the California State Militia Volunteers is open to all citizens regardless of race, sex, religion, or political affiliation.
Units NOT open to public membership and/or which are organized for any purpose other than the support of Constitutional principals and community service may be considered private armies and are NOT to be confused with the Constitutional "unorganized" militia.
As a practical matter, we allow only citizens of good character in the militia.
We are not "For Hire", and will not participate in a "Call to Arms" but can respond and assist in community disasters and strife if requested or needed in our state.
Any and ALL who advocate criminal activity, terrorism, revolution, or a change from our republican form of government are not accepted in our organization.
Our members should understand the duties and obligations of both citizens and government under our Constitution.
Joining the California State Militia is entirely voluntary and as such our members have the right to resign at any time.