Occupancy rule for military camp grounds (called FAMCAMPS) is active duty military, Nat'l Guard/Reserves, retired military, and DOD civilians. Most FAMCAMPS are on military bases requiring a DOD ID card. Several are off base at lakes or on federal land. Those off base will require the camper to show their DOD ID card as proof of eligibility.
They are a good deal - many have full hookup with rates between $20 and $35. Many are first come, first served. Many also require reservations. Info is available on-line by doing a search on "Military FAMCAMP. ". There is also an excellent printed guide sold in virtually every Base/Post Exchange store.
Ed & Bev Felker
Retired USAF Col and retired Nurse
Traveling with Lily & Bella ('Teddy Bear' breed)
2015 Vegas 24.1 (E-350)