Okla. Admin. Code § 252:740-13-2
The following words and terms, when used in this Subchapter, shall have the following meaning, unless the context clearly indicates otherwise:
"Specified pollutants" means:
Added at 40 Ok Reg 329, eff 10-25-22 (emergency)
Added at 40 Ok Reg 2062, eff 9-15-23