(i) If the base rent is equal to or greater than the payment standard, the rent increase limitations in Sections 37.3(a)(1) and (2) shall apply to the entire base rent, and the arbitration procedures for those increases set forth in Section 37.8 and 37.8A shall apply.
(ii) If the base rent is less than the payment standard, the rent increase limitations of this Chapter shall not apply; provided, however, that any rent increase which would result in the base rent being equal to or greater than the payment standard shall not result in a new base rent that exceeds the payment standard plus the increase allowable under Section 37.3(a)(1).
(B) If the tenant's share of the base rent is calculated as a fixed percentage of the tenant's income, such as in the Section 8 Certificate Program, the rent increase limitations in Section 37.3(a)(1) and (2) shall not apply. In such circumstances, adjustments in rent shall be made solely according to the requirements of the tenant-based rental assistance program.
(11) Additional Occupants.
(A) Except as provided in Section 37.3(a)(11)(B), a landlord may not impose increases solely because a tenant has added an additional occupant to an existing tenancy, including, but not limited to, a newborn child or family member as defined in Section 401 of the Housing Code. The prohibition on increases mandated by this Subsection (A) shall apply notwithstanding a rental agreement or lease that specifically permits a rent increase for additional occupants.
(B) A landlord may petition the Board for a rent increase pursuant to Section 37.3(a)(8) for costs associated with the addition of occupants authorized under Section 37.9(a)(2)(C).