Respondent owns and operates a cleaning and maintenance product manufacturing and supply facility where greater than 15,000 pounds of vinyl acetate monomer in a process at its facility. On or about April 4-5, 2017, EPA conducted an inspection of Respondent’s facility to determine compliance with Section 112(r) of the CAA and 40 C.F.R. Part 68. From the time Respondent first had on site greater than 15,000 pounds of vinyl acetate monomer in a process, Respondent was subject to the requirements of Section 112(r) of the CAA, 42 U.S.C. ยง 7412(r), and 40 C.F.R. Part 68 because it was an owner and operator of a stationary source that had more than a threshold quantity of a regulated substance in a process.