All firefighters who are regularly employed by any local political subdivision of this Commonwealth and all regularly enrolled members of volunteer fire companies shall be eligible for admission to the school and shall be chosen by the governing authority of each political subdivision. The Public Service Institute Board shall apportion the number admitted to the school so that each county is represented in the ratio that the number of firefighters in each county bears to the total number of firefighters in this Commonwealth.
35 Pa.C.S. § 7354