24 CFR § 886.118
Amount of housing assistance payments in projects receiving other HUD assistance
February 22, 2021
(a) For any Section 221(d)(3) BMIR, Section 236, or Section 202 project, the Housing Assistance Payment shall be the amount by which the rent payable by the eligible Family under Section 8 is less than the subsidized rent (which subsidy shall not be reduced by reason of any Section 8 assistance).
(b) In no event may any tenant benefit from more than one of the following subsidies: Rent Supplements, Section 236 deep subsidies, Section 23 leasing assistance, and Section 8 housing assistance.
[42 FR 5603, Jan. 28, 1977, as amended at 49 FR 19948, May 10, 1984]