On October 17, 2018, the Occupational Safety and Health Administration (OSHA) inspected a Chambers Construction Co. (Chambers Construction or Respondent), worksite at 701 North Point Drive in Pittsburgh, Pennsylvania (Worksite), after OSHA Compliance Safety and Health Officer (CSHO) Walter Visage, who was driving on the West End Bridge, saw two individuals working on the roof of a commercial office building, the Cardello Building, without any apparent fall protection. He saw that the two individuals on the roof, later identified as Messrs. Ford and McCabe, were not adequately protected from falling off the edge of the roof, and, in accordance with OSHA’s regional enforcement policy, initiated an inspection of the Worksite. (Stip. ¶ 5; Tr. 34-37, 50; Ex. 2, at 2, Exs. 5, 7). CSHO Visage testified