Interpretation ID: nht93-5.47

TYPE: Interpretation-NHTSA

DATE: August 5, 1993

FROM: John Womack -- Acting Chief Counsel, NHTSA; signature by Kenneth N. Weinstein

TO: Cary Klingner -- Trison Inc.

TITLE: None

ATTACHMT: Attached to letter dated 7/12/93 from Cary Klingner to John Womack (OCC-8874)

TEXT:

We have received your letter of July 12, 1993, with respect to Trison's "Daytime Running Lights" module. You have heard that "federal regulations were modified earlier this year that may affect this concept", and ask whether the device "complies with the regulations."

As you have described it, the product activates the lower beam headlamps whenever the engine is running, and may be overridden by the vehicle's headlamp switch. The module "can be installed by any car owner."

On January 11, 1993, we amended Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices and Associated Equipment to permit motor vehicles to be manufactured with front lamps (other than parking and fog lamps) wired to operate automatically during daytime. Before the amendment, paragraph S5.5.3 of Standard No. 108 required taillamps to be activated when the headlamps are activated. However, the amendment modified this requirement to state that taillamps "need not be activated if the headlamps are activated at less than full intensity" when in use as daytime running lamps. I enclose a copy of the amendment for your information. We have received petitions for reconsideration of aspects of the rule other than S5.5.3, and it is possible that the standard will eventually be amended in response to them.

The amendment does not establish requirements for aftermarket equipment such as your module. There is no Federal restriction on the sale of the module, but there are restrictions on its installation on new vehicles. A manufacturer, distributor, and dealer of a new motor vehicle must deliver it in full compliance with the Federal motor vehicle safety standards. As we understand it, your module would activate the lower beam headlamps at their full intensity, and the taillamps would not be activated until the main headlamp switch was used. This would create a noncompliance with S5.5.3, since the taillamps must be activated when the headlamps are activated at full intensity. In addition, the module also impairs the effectiveness of the taillamps within the meaning of a prohibition imposed by S5.1.3. For these reasons, a manufacturer or dealer could not legally install the module on a new motor vehicle before its sale to its first purchaser for purposes other than resale.

With respect to installation of the module in a vehicle after its first sale, under the National Traffic and Motor Vehicle Safety Act (the Act), no manufacturer, distributor, dealer, or motor vehicle repair business may "render inoperative, in whole or in part," lighting equipment required by Standard No. 108. Because the taillamps apparently will not operate when

the lower beam headlamps are activated at full intensity by the module, in our opinion, the taillamps have been rendered inoperative within the meaning of the statutory prohibition.

However, the module can be installed by the vehicle owner. The statutory prohibition does not apply to the vehicle owner, and modifications by the owner are subject only to State law. We are unable to advise you on State laws and recommend that you seek an opinion from the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, VA 22203.

We do not understand your remark that "Minnesota law only requires that the headlamps be on so with our module no other lights or markers will be illuminated," and believe that your interpretation must be incorrect. Under the Act, if a State has a standard on lighting performance, it must be identical to the Federal standard.

I hope that you find this information helpful.