{"data":{"id":"us/40-cfr-721.50","jurisdiction":"us","citation":"40 CFR 721.50","heading":"Applicability.","body":"This subpart B identifies certain significant new uses of chemical substances identified in subpart E of this part. The provisions of this subpart B apply only when referenced as applying to a chemical substance identified in subpart E of this part.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT","PART 721—SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES","Subpart B—Certain Significant New Uses"],"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":"24ec2904f28d968ed1ad0e6c16548dff6dcd9c861762ede04b4a9da8a01f681c","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-721.47","next":"us/40-cfr-721.63"},"notice":"GroundRules: Original legal text. Not legal advice."}