CFR›Title 30›Chapter I›Part 70›Subpart T ContainsSection 70.1900CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart T—Diesel Exhaust Gas Monitoring Sections 70.1900 § 70.1900 Exhaust Gas Monitoring. Previous C Subpart C—Sampling Procedures