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Interpretation ID: nht73-3.32

DATE: 02/20/73

FROM: AUTHOR UNAVAILABLE; R. B. Dyson; NHTSA

TO: Truck Body and Equipment Assoc.

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your letter of January 8, 1973, concerning the application of Standard No. 124, "Accelerator Control Systems", to auxiliary throttles mounted inside or outside of the cab and used exclusively while the vehicle is in a stationary position to insure proper engine speed for the operation of pumps, elevating platforms, and similar equipment. Since the definition of "idle position" was amended to provide for the use of throttle positioners in 37 F.R. 20035 (September 23, 1972), the auxiliary throttles described are not subject to the requirements of the standard.