Miss. Code § 37-23-91
The board of education in any Class 1 county of the state having a total population of more than one hundred thousand (100,000) according to the 1960 census and having a total assessed valuation in excess of Sixty Million Dollars ($60,000,000.00), bordering on the Gulf of Mexico and in which there is a federal military base, under the methods set out in Sections 37-23-91 through 37-23-111, may establish a child development center for children in the county who have an intellectual or physical disability or are otherwise unable to attend public school, including, but not limited to, any child of educable or trainable mind under twenty-one (21) years of age for whose particular educational needs institutional care and training are not available in such county, or who cannot pursue regular classwork due to reason or reasons of defective hearing, vision, speech, intellectual disability or physical conditions, as determined by competent medical authorities and psychologists who are approved by the State Board of Education. This specifically includes, but shall not be limited to, provision for the deaf and blind of an age under six (6) years, where early training is in accordance with the most advanced and best approved scientific methods of instruction, always taking into consideration the best interests of the child and his improvement at a time during which he is most susceptible to improvement.
Miss. Code § 37-23-91