{"data":{"id":"us/40-cfr-247.4","jurisdiction":"us","citation":"40 CFR 247.4","heading":"Contracting officer requirements.","body":"Within one year after the effective date of each item designation, contracting officers shall require that vendors:\n(a) Certify that the percentage of recovered materials to be used in the performance of the contract will be at least the amount required by applicable specifications or other contractual requirements, and\n(b) Estimate the percentage of total material utilized for the performance of the contract which is recovered materials.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER I—SOLID WASTES","PART 247—COMPREHENSIVE PROCUREMENT GUIDELINE FOR PRODUCTS CONTAINING RECOVERED MATERIALS","Subpart A—General"],"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":"6344e5440ef1e9a404c381214d9cbc0f694c73ecd2860dd2013d69466183e782","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-247.3","next":"us/40-cfr-247.5"},"notice":"GroundRules: Original legal text. Not legal advice."}