2002 PSAP Consolidation Study - Washington Parish Louisiana
https://sites.google.com/site/fdnyfdny/home/2002-report-improving-comms - FDNY - 2002 Report - Improving Radio Communications
https://sites.google.com/site/hennepincountyminnpublicsafety/home/trs-handbook---older - 2002 approx - Hennepin County Minnesota TRS Handbook - various talkgroups explained