{"data":{"id":"us/40-cfr-421.101","jurisdiction":"us","citation":"40 CFR 421.101","heading":"Specialized definitions.","body":"For the purpose of this subpart the general information, abbreviations, and methods of analysis set forth in 40 CFR part 401 shall apply to this subpart.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS","PART 421—NONFERROUS METALS MANUFACTURING POINT SOURCE CATEGORY","Subpart J—Primary Tungsten Subcategory"],"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":"2a5dd9c4eae4aebd74246cbe1ed7cc94de73b9cbbcb5d4e0499d5c9e741218fd","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-421.100","next":"us/40-cfr-421.102"},"notice":"GroundRules: Original legal text. Not legal advice."}