StacksVerified U.S. regulatory reference

40 CFR §62.15215

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Install, calibrate, maintain, and operate a continuous opacity monitoring system.
  2. (b)Install, evaluate, and operate each continuous opacity monitoring system according to § 60.13 of subpart A 40 CFR part 60.
  3. (c)Complete an initial evaluation of your continuous opacity monitoring system according to Performance Specification 1 in appendix B of 40 CFR part 60. Complete this evaluation by 180 days after your final compliance date.
  4. (d)Complete each annual evaluation of your continuous opacity monitoring system no more than 13 months after the previous evaluation.
  5. (e)Use tests conducted according to EPA Reference Method 9, as specified in § 62.15245, to determine compliance with the applicable opacity limit in tables 2 or 4 of this subpart. The data obtained from your continuous opacity monitoring system are not used to determine compliance with the opacity limit.