Paid-On-Call Firefighter. Center Line Public Safety Department. Center Line, MI. The Center Line Fire Department is currently accepting applications for Paid-on-Call Fire Fighters. To be eligible, applicants must have a High School Diploma or GED, must be 18 years old, must live within 5 miles of city limits, must have no criminal record and a good driving record. Must be Michigan Fire Fighter I & II, all individuals meeting the minimum qualifica...