1. Regulations
  2. title 40
  3. chapter I-i5
  4. part 53
  5. subpart C
  6. appendix-i 8

- Figure C-4 to Subpart C of Part 53—Illustration of the Minimum Limits for Correlation Coefficient for PM 2.5 and PM 10-2.5 Class II and III Methods

[72 FR 32204, June 12, 2007]

AUTHORITY: Sec. 301(a) of the Clean Air Act (42 U.S.C. sec. 1857g(a)), as amended by sec. 15(c)(2) of Pub. L. 91-604, 84 Stat. 1713, unless otherwise noted.

SOURCE: 40 FR 7049, Feb. 18, 1975, unless otherwise noted.