Interpretation ID: nht88-3.52

TYPE: INTERPRETATION-NHTSA

DATE: 09/14/88

FROM: WENDELL D. KEGG -- TIRE WHEEL CONSULTANTS

TO: ERIKA Z. JONES -- CHIEF COUNSEL NHTSA

TITLE: NONE

ATTACHMT: ATTACHED TO LETTER DATED 01/1/8/89 FROM ERIKA Z. JONES -- NHTSA TO WENDELL D. KEGG, REDBOOK A33, STANDARD 109

TEXT: Dear Ms. Jones:

I am confused by the FMVSS 110 Standard. As I read Paragraph S4.3.1 covering inflation pressure on the vehicle placard, the tire cannot by inflated beyond that maximum pressure embossed on the tire. Subparagraph S4.3.1(c) is not clear.

Can a vehicle manufacturer specify a higher inflation pressure in a spare tire application than that which is embossed on the sidewall of the tire?

Thank you.

Very truly yours,