All "first responder" and NIMS agencies will be able to access the VIPER talkgroups set aside for each service. They'll have their own 800 or whatever dispatch systems that won't be part of VIPER, but just as our USAR group will have use of the SAR talkgroups, designated EMS talkgroups, fire talkgroups, law enforcement talkgroups, yadda yadda yadda, the air ambulance services will have much of the same access. The "new" radios will be newer 800 mhz radios that are digital capable that replace the analog MCS2000 and Spectra 800s they have now.