At the anniversary date of the tenancy of the certified household occupying a restricted rental unit, following minimum 90 day notice provided to the occupant household, the rent may be increased to an amount commensurate with the annual percentage increase in the Consumer Price Index for All Urban Consumers (CPI-U), specifically U.S. Bureau of Labor Statistics Series CUUR0100SAH, titled "Housing in Northeast urban, all urban consumers, not seasonally adjusted." The maximum allowable rent increase for the year will be effective as of the same date as the regional median income limits determined pursuant to N.J.A.C. 5:80-26.3 and published by the Agency. This rent increase may not exceed 5% in any one year and notice thereof must be filed with the administrative agent. If the landlord has charged a tenant less than the initial maximum allowable rent for a restricted unit, the landlord may, with the approval of the administrative agent, use the maximum allowable rent instead of the current rent in performing this multiplication to establish the rent for the next tenant under a new lease. LIHTC units are not governed by the provisions of this section, but rather by the provisions of the State's Qualified Allocation Plan, N.J.A.C. 5:80-33.1 through 33.40.