May I conduct a repeat performance test to establish new operating limits?

40 C.F.R. § 60.2160
in effect
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(a) Yes. You may conduct a repeat performance test at any time to establish new values for the operating limits. The Administrator may request a repeat performance test at any time. (b) You must repeat the performance test if your feed stream is different than the feed streams used during any performance test used to demonstrate compliance.
Source: ecfr_bulkFetched: 7/26/2026
Source: eCFR APIURL: https://www.ecfr.gov/api/versioner/v1/full/2024-07-01/title-40.xml?part=60Fetched: 5/31/2026