Interpretation ID: aiam0273
Chief Engineer
Cole-Hersee Company
20 Old Colony Avenue
South Boston
MA 02127;
Re: Federal Motor Vehicle Safety Standard No. 101, Control Location Identification, and *Illumination*#Dear Mr. Introvigne:#This is in reply to your letter of September 2 asking whether a contradiction exists in paragraph S4.3 of Standard No. 101. You ask, in essence, whether the requirement in paragraph S4.3 that an illumination adjustment control be provided with an 'off' position contradicts the requirement in the same paragraph that control identification 'shall be illuminated . . . whenever the headlamps are activated.'#It is true that activation of the headlamps will not simultaneously activate control identification illumination if the illumination switch is in the 'off' position. The intent of S4.3 is that control identification shall be illuminated whenever the headlamps are activated and the illumination adjustment control is in a position other than 'off.'#Sincerely, Lawrence R. Schneider, Chief Counsel;