1. Regulations
  2. title 40
  3. chapter I-i11
  4. part 63
  5. subpart UU
  6. appendix

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Operating time
(% of year) 		Equivalent continuous process monitoring frequency time in use Monthly Quarterly Semiannually 0 to <25%QuarterlyAnnuallyAnnually. 25 to <50%QuarterlySemiannuallyAnnually. 50 to <75%BimonthlyThree timesSemiannually. 75 to 100%MonthlyQuarterlySemiannually.

AUTHORITY: 42 U.S.C. 7401

SOURCE: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.