TITLE VAC Virginia Administrative Code   Tree Trimming Operations This regulation contains arboriculture safety requirements for tree trimming operations. 16VAC25-73 Reverse Signal Operation Safety Requirements for Vehicles, Machinery and Equipment for General Industry and the Construction Industry, – PDF (46KB) 16 VAC 25-97 Confined Space Standard Telecommunications Industry – PDF (46KB) 16 VAC 25-70-10 et seq. Overhead High Voltage Line … Continue reading Archive page for Virginia Unique Standards