StacksVerified U.S. regulatory reference

40 CFR §60.1245

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Yes, the accuracy tests for your sulfur dioxide continuous emission monitoring system require you to also evaluate your oxygen (or carbon dioxide) continuous emission monitoring system. Therefore, your oxygen (or carbon dioxide) continuous emission monitoring system is exempt from two requirements:
  1. (a)Section 2.3 of Performance Specification 3 in appendix B of this part (relative accuracy requirement).
  2. (b)Section 5.1.1 of appendix F of this part (relative accuracy test audit).