40 CFR § 63.2252
What are the requirements for process units that have no control or work practice requirements?
June 9, 2020
For process units not subject to the compliance options or work practice requirements specified in §63.2240 (including, but not limited to, lumber kilns), you are not required to comply with the compliance options, work practice requirements, performance testing, monitoring, SSM plans, and recordkeeping or reporting requirements of this subpart, or any other requirements in subpart A of this part, except for the initial notification requirements in §63.9(b).
[71 FR 8372, Feb. 16, 2006]