DC IO radio rollcalls

the washington DC area has 2 "IO" (interops) channels - called DC IO 1
and DC IO 2

listening at broadcastify calls we have confirmed that "FBI WFO" does
rollcalls weekly at 10 AM local on Wednesdays on DC IO 1 - [ and
monthly on the first wednesday on DC IO2 after the IO1 test ends ]

TG 1429 - DC Interop 1 / other - on Fairfax County P25 TRS
TG 1412 - DC IO2 - on the Fairfax County P25 TRS

stations called are -
ATF Washington Field Office
Bureau of Printing and Engraving
Customs and Borders DC HQ
Department Health and Human Services
DEA HQ Command Center
Federal Air Marshals Reagan Airport
FBI SIOP (or maybe FBI TIOC)
FEMA
Federal Protective Service
ICE Washington DC
ICE Ops
Joint Task Force National Guard Civilian Support
Maryland EMA
Pentagon Force Protection Agency
Social Security Administration OIG
TSA Reagan Airport
US Capitol Police HQ
US ?CBD? Dulles National Airport
US Coast Guard Baltimore
US Marshals
US Mint Police
US Park Police
US Postal Inspection Service
US Secret Service
Alexandria (VA) Emergency Comms
Arlington County (VA) Comm Center
DC 911 Unified Comm Dispatch
DC FD Comms Liaison Office
Fairfax County (VA) Comm Center
Fauquier County (VA) Comm Center
Maryland State Police College (Park)
Montgomery County PD
Virginia State Police (WAC420)
National Capital Region (NCR) Interop Comms Group
Washington Metro Transit Authority
Metro Washington Airport Authority

DC IO2 was TG 1412 on the Fairfax County P25 TRS - heard via
Broadcastify Calls - some replys were encrypted (garbled noise via
feed)

these rollcalls are very similar to the PMARS rollcall - but there are
many more federal agencies - and fewer local agencies - on the DC IO1
and DC IO2 rollcalls

possibly the basic VHF repeater channels are - DC IO1 159.15R NAC 653
- DC IO2 167.25R NAC 68F - aka the '25 Cities Channels' - and many of
the local TRS have patches to these 2 channels

if someone could record an entire test and save it at the wayback
machine - that would be very nice