Interpretation ID: aiam2545
Director of Engineering
Wayne Corporation
Post Office Box 1447
Industries Road
Richmond
IN 47374;
Dear Mr. Kurre: this responds to your February 22, 1977, letter asking whether restraining barrier in front of a seat with a back higher than that required in S5.1.2 of Standard No. 222, *School Bus Passenger Seating and Crash Protection*, must coincide with or lie outside of the perimeter of the extended seat back.; The requirements for restraining barrier surface area are found i paragraph S5.2.2 of the standard. That section states that: 'in a front projected view of the bus, each point of the barrier's perimeter coincides with or lies outside of the perimeter of the seat back of the seat for which it is required.' The seat back of the seat for which a restraining barrier is required has dimensions specified in S5.1.2 of the standard. Therefore, a restraining barrier must only coincide with or lie outside of the seat back surface required by S5.1.2. If a seat back surface exceeds the size required in Standard No. 222, the size of the restraining barrier need not coincide.; Sincerely, Frank A. Berndt, Acting Chief Counsel