Notice and timing
How delinquency is handled
Grace period after the due date
The rules state that charges are due within 30 days of the statement due date; once that period passes, the account is delinquent and termination may proceed after proper notice.
Late-fee calculation
A delinquent retail balance accrues interest at 1.5% per month, stated in the rules as 18% annually, with collection charges and any applicable service-restoration fee also collectible. The District's rate page additionally lists collection and returned-payment charges; the exact fee in force should be confirmed against the current adopted schedule.
Disconnection timeline
The published rule gives a functional timeline rather than a fixed calendar day: the customer has the stated 30-day payment period after the statement due date; an unpaid balance after that point is delinquent, and unpaid charges more than 30 days after the due date are sufficient grounds for termination after proper notice. The public rule does not promise a fixed day-of-month shutoff.