Va. Code Ann. § 22.1-70.3

Each division superintendent shall at least annually, if so requested by the local school board pursuant to subdivision 9 of § 22.1-79, survey the relevant local school division to identify critical shortages of (i) teachers and administrative personnel by subject matter, (ii) specialized student support positions as that term is described in subsection O of § 22.1-253.13:2, and (iii) school bus drivers and report such critical shortages to the school board, Superintendent of Public Instruction, and to the Virginia Retirement System.