Pennsylvania Statutes Title 71 P.S. State Government § 199. Geographic names (Adm. Code § 519)

Every administrative department, board, or commission of the Commonwealth shall, in preparing or publishing maps, reports, or other documents showing or referring to any mountain, river, creek, or other topographic feature within the Commonwealth, designate such mountain, river, creek, or other topographic feature, by, and only by, such name as shall have been adopted therefor by the Pennsylvania Historical and Museum Commission.