U.S. Code of Federal Regulations
Regulations most recently checked for updates: Feb 16, 2025
(a) For each affected kiln that is subject to the emission limits specified in Table 1 to this subpart, you must conduct a performance test before renewing your 40 CFR part 70 operating permit or at least every 5 years following the initial performance test.
(b) You must conduct a performance test when you want to change the parameter value for any operating limit specified in your OM&M plan.