The permitted obstruction provisions of paragraph (c) of Section 62-34 (Height and Setback Regulations on Waterfront Blocks) shall be modified as follows:

1. the applicable dormer provisions shall be modified pursuant to the provisions of paragraph (c)(1) of Section 127-233 (Base heights and setback regulations);
2. the penthouse regulations of paragraph (c)(1) of Section 62-34 shall not apply; and
3. the maximum height of any permitted obstructions shall be determined in accordance with the provisions of Article VI, Chapter 1 (Special Regulations Applying Around Major Airports), except where modified by certification of the Chairperson of the City Planning Commission pursuant to Section 127-236 (Certification to modify maximum height of building or other structure).