CHART has had channels/talkgroups on local/county (and other) systems for some time now. As FiRST rolls out, they are either moving to or being patched onto FiRST.
Since becoming active on FiRST, it's not unusual for me to hear CHART activity from Ocean City to north of Hagerstown - I assume since the State Operations Center is only a few miles from me in Anne Arundel County. It's also interesting to hear them provide traffic reports from Annapolis (Rt 50) to the Rt 50 bridge in Ocean City during the summer when in Worcester County - particularly on weekends (for obvious reasons).
Not a Radio Shack fan.....