RINS/COG Frequencies Active

In the past few days, a couple of the Regional Intersystem/Council of Governments frequencies have been active. These are 800 MHz frequencies primarily used for interoperability in the DC area. 852.2375 [192.8] was active in Fredericksburg. 852.4875 [ 91.5] was monitored on I-95 near Potomac Mills. The units talking on this frequency may have been from Maryland. The conversations were brief; specific users could not be identified.