D.C. Mun. Regs. tit. 14, § 8304
8304.1 Written Request Required. Owners may request a rent increase no later than 90 days prior to any family annual reexamination date. The request must be in writing.
8304.2 Amount of Rent Adjustment Rent to the Owner may be adjusted either up or down. Subject to compliance with 8304.1 above, the adjusted rent to an Owner who has submitted a written request shall be the LESSER of:
8304.3 Prerequisites to a Rent Increase. The rent may not be increased on the family annual reexamination date unless:
8304.4 Timing of any Increases to Rent. Housing Assistance Payment increases, if approved by DCHA, shall be effective as of the first day of the first month commencing on or after the Participant's annual reexamination (anniversary) date.
SOURCE: Notice of Emergency and Proposed Rulemaking published at 52 DCR 577 (January 21, 2005); as amended by Notice of Emergency and Proposed Rulemaking published at 52 DCR 5094 (May 27, 2005); as amended by Notice of Final Rulemaking published at 52 DCR 8631 (September 23, 2005).