D.C. Mun. Regs. tit. 14, § 8405
8405.1 The following are the reporting requirements for changes to income:
8405.2 The following are the reporting requirements for changes to family composition:
8405.3 All increases in Tenant Payment and reductions in housing assistance payments based on changes in the family's adjusted Annual Income are effective on the first of the month following the thirty (30) Days notice to Family and Owner. All decreases in Tenant Payment and increases in housing assistance payments are effective the first of the month after the change is reported.
8405.4 If the Family does not report the change in income or family composition within the thirty (30) Days as required hereinabove, the Family will be determined to have caused an unreasonable delay in the interim recertification. If the change is not reported timely and the change results in an increase in the family share (Tenant Rent), then:
size will be calculated by taking the larger household size payment standard and subtracting the smaller household size payment standard for calculating the Tenant Payment portion and multiplying the difference times the number of months that the Tenant Payment was based on the incorrect family composition; and
(d) Any excess housing assistant payment due to a failure to properly report additional adjusted Annual Income will be determined using the adjusted Annual Income back to the first of the month following the date the change should have been reported.
8405.5 If the Family timely reports a change, the change goes in to effect at the later of:
(a) The first day of the month following the report of the change; or
(b) The first of the month that is thirty (30) Days after DCHA provides written notice to the Family and Owner.
8405.6 Decreases to Tenant Payment that result in an overpayment by the participant will be calculated retroactively to the date the change should have been effective and a check will be sent to the Family.
SOURCE: Notice of Final Rulemaking published at 54 DCR 9366 (September 28, 2007).