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.
40 C.F.R. §63.7892
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.
40 C.F.R. §63.7892