Class I sludge management facilities, POTWs (as defined in 40 CFR 501.2) with a design flow rate equal to or greater than one million gallons per day, and POTWs that serve 10,000 people or more shall submit the information in Sec. 503.27(a) to the permitting authority on February 19 of each year. (Approved by the Office of Management and Budget under control number 2040-0157)