Section 26.09 - Car and Counterweight Buffers, Counterweights(1) Car and counterweight buffers shall conform to the following: (a) For Class I and II elevators, the car and counterweight buffers shall be installed in accordance with the requirements of 524 CMR 35.00: Safety Code for Elevators and Escalators A17.1-2013 and the Massachusetts Modifications of That Code. EXCEPTION: Spring buffers may be used under the following conditions:
1. For electric elevators whose rated speed is not more than 300' per minute.2. For hydraulic elevators whose maximum speed in the down direction with rated load is not more than 300' per minute.3. The stroke of spring buffers for car speeds exceeding 200' per minute shall be equal to or greater than the following:a. 201 to 250 ft. per min.: 61/4"b. 251 to 300 ft. per min.: nine inches (b) For Class in Elevators, the car and counterweight buffers shall be required only where there are occupied spaces or passageways underneath the hoistway, in which case both car and counterweight buffers shall be installed in accordance with the requirements of 524 CMR 35.00: Safety Code for Elevators and Escalators A17.1-2013 and the Massachusetts Modifications of That Code provided that such buffers may be located at each side of the car frame.(2) Counterweights, where provided, shall conform to 524 CMR 35.00: Safety Code for Elevators and Escalators A17.1-2013 and the Massachusetts Modifications of That Code.Amended by Mass Register Issue 1366, eff. 6/1/2018.