Okla. Admin. Code § 785:46-17-2
In addition to terms defined in Title 27A O.S. § 1-1-201 and Title 82 O.S. § 1084.2, the following words or terms, when used in this Subchapter, shall have the following meanings unless the context clearly indicates otherwise:
"CWA" means Clean Water Act.
"DEQ" means the Department of Environmental Quality.
"NPDES" means National Pollutant Discharge Elimination System.
"NPS" means nonpoint source.
"OWRB" means the Oklahoma Water Resources Board.
"Plan" means the Water Quality Standards Implementation Plan, or portion thereof, promulgated by the Board in this Subchapter for the programs that affect water quality within the Board's jurisdictional areas of environmental responsibility.
"SRF" means a fund or program used for loans to eligible entities for qualified projects in accordance with Federal law, rules and guidelines administered by the U.S. Environmental Protection Agency and state law and rules administered by the Board. "SRF" is a Federal term referring to a state revolving fund. There are two separate SRF programs administered in Oklahoma: one is for the purpose of controlling water pollution (the Clean Water SRF) and the other is for the purpose of providing safe drinking water (the Drinking Water SRF).
"USAP" means use support assessment protocols promulgated by the Board and codified at OAC 785:46 Subchapter 15.
"WQS" means the water quality standards promulgated by the Board in OAC 785:45.
"WQSIP" means Water Quality Standards Implementation Plan.
Okla. Admin. Code § 785:46-17-2