Section 156 in The Bihar Motor Vehicles Rules, 1992
156. Gangway.
(1)In every public service vehicle other than a motor cab there shall be a gangway by which passengers may enter or leave the vehicle, (i) Where seats are placed along the sides of the vehicle there shall be a gangway of a clear space of not less than 620 mm. measured between the fronts of the front of the seats, and (ii) Where seats are placed across the vehicle there shall be a gangway of a clear space of not less than 310 mm. measured between any part of adjoining seats or their supports.(2)Where the vehicle has seats across the full width of the body with separate doors to each seat, a gangway from front to rear of the vehicle shall not be required.
