On various dates, the U.S. Environmental Protection Agency (EPA) issued approvals to Oscar Renda Contracting, Inc., FNF Construction, Inc., CEMEX Construction Materials South, LLC, and Core Ready Mix, LLC, ("Permittees") under the Clean Air Act's Tribal Minor New Source Review (NSR) Program. The EPA approved these Requests for Coverage under the General Air Quality Permit for New or Modified Minor Source Concrete Batch Plants in Indian Country ("Concrete Batch Plants General Permit") for Window Rock Airport, Navajo Nation Crushing/Screening Operation, CEMEX--Higley Plant, Oscar Renda Contracting, Inc., Portable Concrete Batch Plant Facility, and Core Ready Mix Higley Plant ("Sources"). These approvals authorized the construction and operation of these Sources under the Tribal Minor NSR Program.
Source
https://www.federalregister.gov/documents/2026/09/09/2026-18285/approval-of-clean-air-act-general-permit-requests-for-coverage-for-new-or-modified-minor-sourceDocument officiel chez le régulateur. Citez toujours cette URL — et non la page de détail Vantage — dans les preuves de conformité.