Interpretation ID: nht74-1.28

DATE: 07/15/74

FROM: C. BAKER FOR E. T. DRIVER -- NHTSA

TO: Stanley Electric Co., Ltd.

COPYEE: L. C. OWEN

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your letter of June 27 concerning the location of motorcycle turn signal lamps relative to a combination stop lamp and reflex reflector.

The minimum edge to edge separation distance specified in Table IV of FMVSS No. 108 for motorcycle turn signal lamps is to be measured from the edge of the illuminated surface of both lamps.

The answer to your question 2 is therefore applicable, "2. edge to edge of tail and stop lamp so drawn in sketch C?"