Section 301.400  Standard of Performance

"Standard of Performance" means a standard for the control of the discharge of pollutants, promulgated by the Administrator pursuant to Section 306 of the CWA, for the control of the discharge of pollutants, which reflects the greatest degree of effluent reduction which the Administrator determines to be achievable through application of the best available demonstrated control technology, processes, operating methods, or other alternatives, including, where practicable, a standard permitting no discharge of pollutants.