This definition appears very rarely
See other definitions of OAMP
Samples in periodicals archive:
CONVENTION - February Every February all the OAMP (Oregon Association of Mounted Posses) gather for a convention. Awards and trophies for the previous years annual events are awarded. SAR SYMPOSIUM - May Annual gathering of Search and Rescue Posse members to train, certify, or recertify their skills in accordance with standards set by Oregon State Sheriff's Association.
www.oamp.us, O.A.M.P., Oregon Association of Mounted Posses