CFR > Title 40 > Chapter I > Subchapter D > Part 141 > Subpart U CFR > Title 40 > Chapter I > Subchapter D > Part 141 > Subpart U – Initial Distribution System Evaluations Current as of: 2024 | Check for updates | Other versions § 141.600 General requirements § 141.601 Standard monitoring § 141.602 System specific studies § 141.603 40/30 certification § 141.604 Very small system waivers § 141.605 Subpart V compliance monitoring location recommendations