Interpretation ID: aiam1947

Mr. Stan Haransky, Truck Body and Equipment Association, 5530 Wisconsin Avenue, Suite 1220, Washington, DC 20015; Mr. Stan Haransky
Truck Body and Equipment Association
5530 Wisconsin Avenue
Suite 1220
Washington
DC 20015;

Dear Mr. Haransky: This responds to your request for a determination whether a mobil water tower trailer equipped with air brakes would be subject to the requirements of Standard No. 121, *Air brake systems*.; The answer to your question is yes. From the description supplied t you by Klein Products, the trailer does not appear to qualify for exclusion from the standard.; I would like to advise you that the National Highway Traffic Safet Administration recently proposed exclusion of this vehicle type from Standard No. 121, and we invite the submission of comments from the Truck Body and Equipment Association or Klein Products on our proposal.; Yours truly, Richard B. Dyson, Assistant Chief Counsel