No. "EVENT" talk groups are dynamic. They're just a pool of TG's available for various needs as they arise. Also used to reserve a group of TG's that aren't needed immediately but are reserved for future needs/expansion of the system. They might grab a group of 5 or 15 to deal with COVID activity or protest. Next year they might rename some to Department of Alien Invasions.do they ever post who using the talk group. if so where.
Most state's with statewide talkgroups assign them on an as needed basis. Outside of the assigning authority and agency/agencies utilizing them the assignments are not public information or posted to let you know who is using them. They may be used by one agency this morning and a different one tonight, you never know.do they ever post who using the talk group. if so where.
In my area, on the state system, while that is basically true for major events, they change almost daily for day to day events from water or hiking rescues, to local, state or federal LE activities, funeral escorts across county lines, or, now adays, protests. I've even heard them change mid-day. This is why it is very important to keep lists of the radio ids on the system, take notes, keep an Excel spreadsheet, add them to the wiki. I started that a few years ago and have almost 5000 state radios and another 5000 local/county radios identified. I began the wiki page for my state and refer to it on a regular basis. Really helps you identify not only who is on event talkgroups but also new talkgroups found or who is using encrypted talkgroups.I've found in my area, event talkgroups are used for the same purposes year after year. Say in 2019 the half marathon PD detail was on EVENT 5. Chances are in 2020 they'll be on EVENT 5 again.
That's why I take notes on each event and what talkgroup(s) I see in use so know what to expect in years to come.