Interpretation ID: aiam1702
United States Senate
Washington
DC 20510;
Dear Senator Eagleton: I am pleased to respond to your November 18, 1974, letter asking for clarification of the National Highway Traffic Safety Administration regulations that might affect disconnection of the ignition interlock and continuous buzzer in 1974- and 1975-model passenger cars. Chrysler Corporation has suggested that our regulations make disconnection more complicated than contemplated by the 'Motor Vehicle and Schoolbus Safety Amendments of 1974.'; The NHTSA has issued no regulations which govern the disconnection o any safety devices, including the ignition interlock and continuous buzzer. The only interlock or belt warning system requirements issued by the NHTSA specified installation of these safety features at the factory, and they are unrelated to disconnection of these devices by the dealer or any other person. The regulation in question (Standard No. 208, *Occupant crash protection*) specified installation of ignition interlocks until October 29, 1974, when that requirement was deleted in response to legislation enacted October 27, 1974. The regulation also specified installation of a 'continuous buzzer' until December 3, 1974, when that requirement was modified in response to the same legislation, after the new system had been proposed and had been commented on by interested persons. The new system conforms to the legislative prohibition on continuous buzzers, and it is optional until February 24, 1975, when it becomes mandatory.; The only restrictions on disconnection of safety devices are statutor and, as such, are not subject to modification by the NHTSA. Specifically, the Safety Act of 1966 prohibits sale of a vehicle which does not comply with applicable standards at the time of sale, and this effectively prohibits disconnection prior to sale (S108(a)(1)). Until the Safety Amendments of 1974 become effective on December 26, 1974, (sic); The new system consists of a continuous or flashing reminder light tha operates only during the 4- to 8-second period after the ignition is operated, and a continuous or intermittent audible warning signal which operates only during the 4- to 8-second period after the ignition is operated if the driver's lap belt is not in use. Either the old system or new system can be provided in passenger cars until February 24, 1975, when the law requires that the old system be discontinued.; Since the permissibility of disconnection is the subject of a la passed by Congress, our regulation does not address the issue. We have prepared a short discussion of the disconnection law and I enclose a copy that explains its effect. The NHTSA is, of course, not authorized to modify this law.; Thank you for your interest in motor vehicle safety. Yours truly, Richard B. Dyson, Acting Chief Counsel