{"data":{"id":"us/40-cfr-792.47","jurisdiction":"us","citation":"40 CFR 792.47","heading":"Facilities for handling test, control, and reference substances.","body":"(a) As necessary to prevent contamination or mixups, there shall be separate areas for:\n(1) Receipt and storage of the test, control, and reference substances.\n(2) Mixing of the test, control, and reference substances with a carrier, e.g., feed.\n(3) Storage of the test, control, and reference substance mixtures.\n(b) Storage areas for test, control, and/or reference substance and for test, control, and/or reference mixtures shall be separate from areas housing the test systems and shall be adequate to preserve the identity, strength, purity, and stability of the substances and mixtures.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER R—TOXIC SUBSTANCES CONTROL ACT","PART 792—GOOD LABORATORY PRACTICE STANDARDS","Subpart C—Facilities"],"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":"dd227f0966b11a75682fc5f90932552d0159d6758732c3fa6f9319caa5d65692","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-792.45","next":"us/40-cfr-792.49"},"notice":"GroundRules: Original legal text. Not legal advice."}