Interpretation ID: nht72-6.22

DATE: 02/15/72

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

TO: Wells Manufacturing Corp.

TITLE: FMVSS INTERPRETATION

TEXT: In your letter of February 2 you refer to paragraph S4.5.1 of Motor Vehicle Safety Standard No. 108 and its reference to SAE Recommended Practice J564a, Headlamp Beam Switching, April 1964. You ask "whether there is anything in your Docket related to Rule #108 to bring it up to either J564b or J564c."

Perhaps you misread S4.5.1, but it does allow conformance with J564b as an alternative to J564a. No proposal has been issued requiring or allowing conformance with J564c.