23-56 Modifications of Rear Yard Regulations Last Amended4/30/2008 History Print Section Copy Link https://zr.planning.nyc.gov/article-ii/chapter-3/23-56 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10In all districts, as indicated, the regulations set forth in Section 23-543 (For zoning lots with multiple rear lot lines) may be modified in accordance with the provisions of Section 73-69 (Rear Yard Modifications).