Marysville Fire Department is the only city with their own EMS Rig. They make all their own transports.
As for the county TRI Hospital EMS is the primary EMS company in the county but on the western end Lapeer EMS, and Richmond Lenox are still used.
Also in the southern most part of the county in Clay, Ira, Casco Twps Richmond Lenox EMS is used because they are closer.
Tri opperates on the MPSCS System while Lapeer EMS is in 800 Analog Smartnet system II and Richmond Lenox is on VHF hi