If I'm understanding you correctly, your radio techs said the NPSPAC (ITAC) frequencies are for use by Moto systems only? That is incorrect. These are nationwide frequencies for use by any law enforcement agency. Also, they can be set up for repeater operation, if an agency wants to spend the money to do so. They are this way in the DFW area, and also (I believe) some are in the OKC area. I have also heard (read) of agencies that have portable repeaters on the NPSPAC freqs in comm trailers so they can be set up at disaster scenes.
Mark S.