(a) This chapter shall be applicable to the employees of all counties and all municipalities having populations greater than 2,000 according to the most recent federal decennial census, and shall govern in their employment. This chapter shall be applicable also to the employees of all county and city boards of education, the Alabama Institute for the Deaf and Blind, and all employees of the two-year colleges under the control of the State Board of Education, and shall govern in their employment. The employees of all school systems and institutions, counties, and each municipality covered under this section shall have available to them all the rights and remedies provided under this chapter. The governing bodies of all school systems and institutions, counties, and of each municipality covered under this section shall file all necessary employer reports and notices required at the times and in the manner prescribed in this chapter.
(b) Notwithstanding subsection (a) of this section, this chapter shall not apply to any city (excepting school districts and institutions) which has a population of 250,000 or more according to the last or any subsequent decennial federal census, to any park and recreation board now or hereafter established for those cities, to any board or agency now or hereafter authorized and established by the governing body of those cities, nor to employees of the city or of any board or agency.