Found this on the site: http://www.americanlegionriders.net

The American Legion Riders Membership Requirements

The membership requirements for the American Legion Riders are very straightforward. To become a member, you must...
...be a current member in good standing of the American Legion, American Legion Auxiliary or Sons of the American Legion.
...be the owner of a motorcycle of at least 350cc engine displacement and must possess a valid driver's license in your state of residence (military equivalents acceptable as well) ~or~ must be the legal spouse of an ALR member in good standing within the Chapter of application.


To join the American Legion, you must have served at least one day on ACTIVE DUTY during any of these periods of conflict:
April 6, 1917 to November 11, 1918 (World War I)
December 7, 1941 to December 31, 1946 (World War II)
June 25, 1950 to January 31, 1955 (Korean War)
February 28, 1961 to May 7, 1975 (Vietnam War)
August 24, 1982 to July 31, 1984 (Lebanon/Grenada)
December 20, 1989 to January 31, 1990 (Operation Just Cause - Panama)
*August 2, 1990 to today (Operation Desert Shield/Storm/Iraqi Freedom)
A copy of your DD214 showing dates and character of service is required at application.

(This information is available online at www.legion.org/documents/legion/pdf/mbrapp.pdf)

To join the SAL you must be a male descendant (includes stepsons and adopted sons but does not include in-laws) of...

...a member of The American Legion
...or a Veteran who died in service during any of the qualifying periods of conflict listed above
...or of a Veteran who served during one of the qualifying periods of conflict, was honorably discharged, and died subsequent to their service
A copy of The American Legion membership card or DD214 of the Veteran through whom you are qualified is required at application.

(This information is available online at www.sal.legion.org/member.htm#memb)

To join the Auxiliary you must be a woman who...

...is eligible for membership in The American Legion
...or is the mother, wife, daughter, sister, granddaughter, great-grand-daughter, or grandmother of members of The American Legion
...or is the mother, wife, daughter, sister, granddaughter, great-grand-daughter, or grandmother of deceased veterans who served in the United States Armed Forces during the listed war periods
...or is a step relative to a qualified or deceased veteran.
Note that, as with the SAL, in-law relatives to the qualified Veteran are not eligible for membership.

A copy of The American Legion membership card or DD214 of the Veteran through whom you are qualified is required at application.

(This information is available online at www.legion-aux.org/membership/docs/become.html)