40 CFR § 240.202-2
Recommended procedures: Design
June 9, 2020
(a) Whenever possible, thermal processing facilities should be located in areas zoned for industrial use and having adequate utilities to serve the facility.
(b) The site should be accessible by permanent roads leading from the public road system.
(c) Environmental factors, climatological conditions, and socioeconomic factors should be given full consideration as selection criteria.