CFR›Title 40›Chapter I›Part 66›Subpart F ContainsSections 66.51–66.54CorpusDaily eCFRDisplayed edition2026-08-20Last updated2026-08-20 Subpart F—Review of Penalty Calculation Sections 66.51 § 66.51 Action upon receipt of penalty calculation. 66.52 § 66.52 Petitions for reconsideration of calculation. 66.53 § 66.53 Decisions on petitions. 66.54 § 66.54 Procedures for hearing. Previous E Subpart E—Decisions on Exemption Requests and Challenges to Notices of Noncompliance Next H Subpart H—Compliance and Final Adjustment