A Regularly Organized Fire Department composed of, paid or volunteer members, or a combination of both, which is located within any municipality, county, special purpose fire district, in the State of South Carolina (as defined by Section 23-9-310 and 390 South Carolina State Law), that is qualified to participate in the Firemen's Insurance and Inspection Fund, as evidenced by current certification from the State Fire Marshal shall be eligible for membership as a Regularly Organized Fire Department member. On October 1st of every year (unless Oct 1 falls on a weekend, then first weekday of October) invoices are mailed out to all fire departments in good standing. Regularly Organized Membership Benefits flyer.