It shall be unlawful to discharge wastewater, industrial wastes, or other wastes to the POTW, except as authorized by the Manager in accordance with the provisions of these Regulations. The County is obligated under Federal law to identify all Users potentially subject to the pretreatment program, and the character and volume of pollutants discharged by such Users. To satisfy this requirement, all sources of non-domestic discharges to the POTW must complete a Pretreatment Review Application form and complete other forms which the Manager determines appropriate to provide the information needed to categorize each User. The Manager shall be authorized to categorize each User, provide written notice of a User's categorization and what it means, and revise this categorization at any time.