CFR › Title 40 › Part 52 › §52.257440 CFR §52.2574Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)The requirements of § 51.230(f) of this chapter are not met since section 144.33 of the Wisconsin Air Law will preclude the release of emission data in certain situations.