40 CFR 240.210-1 - Requirement.
The thermal processing facility shall be operated and maintained in a manner that assures it will meet the design requirements. An operations manual describing the various tasks to be performed, operating procedures, and safety precautions for various areas of the facility shall be developed and shall be readily available for reference by plant personnel.
Title 40 published on 2013-07-01
no entries appear in the Federal Register after this date.