They want POST "Certificated" to Teach/Supervise POST "Certificated" personnel which seems pretty reasonable to me.
Else, GET you NRA credentials which are G2G everywhere else...
CRPA and NRA Life member
GLOCK Armorer, Remington 870 Armorer, Mossberg 5xx Armorer, 1911 Armorer, M16/AR15 Armorer, Tactical First Aid Primary Responder
NRA Range Safety Officer, Certified Pistol, Shotgun and Rifle Instructor