Miss. Code § 41-59-47
The provisions of this chapter shall apply to all counties and incorporated municipalities except those counties and incorporated municipalities electing not to comply as expressed to the board in a written resolution by the governing body of such county or incorporated municipality. The election of any county to be included or excluded shall in no way affect the election of any incorporated municipality to be included or excluded. If any county or municipality elects to be excluded from this chapter, they may later elect to be included by resolution.
All financial grants administered by the state for emergency medical services pertaining to this chapter shall be made available to those counties and incorporated municipalities which are governed by the provisions of this chapter.
Miss. Code § 41-59-47