Unless undue hardship or prejudice would result therefrom, this Code shall apply to any PAR proceeding pending before the DHCR commenced on or after April 1, 1984. Where a provision of this Code is amended, or an applicable statute is enacted or amended during the pendency of a PAR, the determination shall be in accordance with the statute or Code as it existed at the time the rent administrator's order was issued, unless the relevant law or regulation states otherwise.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 2529.10