{"data":{"id":"us/40-cfr-174.526","jurisdiction":"us","citation":"40 CFR 174.526","heading":"Hygromycin B phosphotransferase (APH4) marker protein in all plants; exemption from the requirement of a tolerance.","body":"Residues of the Hygromycin B phosphotransferase (APH4) enzyme in all plants are exempt from the requirement of a tolerance when used as a plant-incorporated protectant inert ingredient in cotton.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER E—PESTICIDE PROGRAMS","PART 174—PROCEDURES AND REQUIREMENTS FOR PLANT-INCORPORATED PROTECTANTS","Subpart W—Tolerances and Tolerance Exemptions"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"a337a993687172c9eed7bbd47f0535b856d38431810f8e749561da7fa7e51d4a","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-174.525","next":"us/40-cfr-174.527"},"notice":"GroundRules: Original legal text. Not legal advice."}