[Code of Federal Regulations] [Title 46, Volume 7] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 46CFR177.820] [Page 233] TITLE 46--SHIPPING CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PART 177_CONSTRUCTION AND ARRANGEMENT--Table of Contents Subpart H_Passenger Accommodations Sec. 177.820 Seating. (a) A seat must be provided for each passenger permitted in a space for which the fixed seating criterion in Sec. 176.113(b)(3) of this subchapter has been used to determine the number of passengers permitted. (b) A seat must be constructed to minimize the possibility of injury and avoid trapping occupants. (c) Installation of seats must provide for ready escape. (d) Seats, including fixed, temporary, or portable seats, must be arranged as follows: (1) An aisle of not more than 3.8 meters (15 feet) in overall length must be not less than 610 millimeters (24 inches) in width. (2) An aisle of more than 3.8 meters (15 feet) in overall length must be not less than 760 millimeters (30 inches) in width. (3) Where seats are in rows, the distance from seat front to seat front must be not less than 760 millimeters (30 inches) and the seats must be secured to a deck or bulkhead. (4) Seats used to determine the number of passengers permitted, in accordance with Sec. 176.113(b)(3) of this chapter, must be secured to the deck, bulkhead, or bulwark.