D.C. Mun. Regs. tit. 14, § 9107
9107.1 The alternative rent policy does not use adjusted income to calculate rent and Housing Assistance Payment (HAP); therefore there are no deductions or allowances applied to the gross income calculated in accordance with Section 5306, and with the following exception:
(a) As provided under Subsection 9103.1 at the initial triennial recertification only, households whose child care expenses exceed $200 a month, gross income is reduced temporarily (for 6 months), by the amount of reasonable childcare costs above the $200 per month.
SOURCE: Final Rulemaking published at 61 DCR 9596 (September 19, 2014).