The Michigan Public Safety Frequency Advisory Committee (MPSFAC)
In June of 1946, Michigan state and local government units began being served by the Michigan Public Safety Frequency Advisory Committee (MPSFAC). This committee was one of the first established in the U.S.
The geographic area served by MPSFAC has been designated as "Region 21" in regulations promulgated by the Federal Communications Commission. Within Region 21, MPSFAC assists those entities with radio communication networks in the 39, 155, 460, 700 and 800 MHz electromagnetic spectrums.
Boundaries for Region 21 vary depending upon which portion of the electromagnetic spectrum is being coordinated. MPSFAC assists in the coordination of frequencies for public safety agencies including the Michigan State Police, all Sheriff and local law enforcement agencies, local government units such as counties, townships and cities and several other agencies and organizations.