For each closed vent system and control device you use to comply with § 63.7890(b), you must monitor and inspect the closed vent system and control device according to the requirements in § 63.7927 that apply to you.
Cross-references to the CFR
63.789063.7927
40 C.F.R. § 63.7892: What are my inspection and monitoring requirements for process vents? | Justis AI