CFR›Title 40›Chapter I›Part 171›Subpart C ContainsSection 171.201CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart C—Supervision of Noncertified Applicators Sections 171.201 § 171.201 Requirements for direct supervision of noncertified applicators by certified applicators. Source82 FR 1040, Jan. 4, 2018, unless otherwise noted. Previous B Subpart B—Certification Requirements for Applicators of Restricted Use Pesticides Next D Subpart D—Certification Plans