Permit means an authorization, license or equivalent control document issued by EPA or an approved State to implement the requirements of this part and parts 122, 123, 144, 145, 233, 270, and 271 of this chapter. Permit includes RCRA permit by rule ( 270.60), RCRA standardized permit ( 270.67), UIC area permit ( 144.33), NPDES or 404 general permit ( 270.61, 144.34, and 233.38). Permit does not include RCRA interim status ( 270.70), UIC authorization by rule ( 144.21), or any permit which has not yet been the subject of final agency action, such as a draft permit or a proposed permit.
40 CFR § 124.2
In addition to the definitions given in 122.2 and 123.2 (NPDES), 501.2 (sludge management), 144.3 and 145.2 (UIC), 233.3 (404), and 270.2 and 271.2 (RCRA), the definitions below apply to this part, except for PSD permits which are governed by the definitions in 124.41. Terms not defined in this section have the meaning given by the appropriate Act.