CentiMark Corporation (Respondent or CentiMark) engages in roofing work on a contractual basis. On January 9, 2020, the Occupational Safety & Health Administration (OSHA) began an inspection of one of its worksites located at 870 Riversea Road in Pittsburgh, PA (the “worksite”). As a result of the inspection, on April 24, 2020, the Secretary issued a two-item Citation and Notification of Penalty (Citation) to CentiMark alleging a serious violation of 29 C.F.R. § 1926.501(b)(11) and a repeat violation of 29 C.F.R. § 1926.501(b)(10). (Ex. J-1.) A hearing was held on April 13 and 14th, 2021, on a video conference platform. After being granted an extension, the parties filed post-hearing briefs on June 24, 2021, and reply briefs on July 8, 2021. For the reasons below, the undersigned vacates Citation 1, Item 1 and affirms Citation 1, Item 2 as repeat and assesses a penalty of $48,195.