Interpretation ID: nht69-2.15

DATE: 12/16/69

FROM: AUTHOR UNAVAILABLE; C. A. Baker; NHTSA

TO: Fiat Motor Company, Inc.

TITLE: FMVSS INTERPRETATION

TEXT: Thank you for your letter of November 20, 1969, to Mr. Francis Armstrong, concerning your proposed windshield wiper system.

We assume your new windshield wiping system will meet the requirements of S4.1.1.3 of Motor Vehicle Safety Standard No. 104, based upon your description of its operation. Note that S4.1.1.3 states "the highest and one lower frequency" -- the fact that you have even a lower frequency, to cycles per minute, does not conflict with this requirement. The main thing is you do offer a frequency differential of at least 15 cycles per minute measured from a low frequency of at least 20 cycles per minute.

With respect to the requirements of Standard No. 104, I must point out that this Bureau does not issue approvals of windshield wiper systems or on vehicle designs incorporating this equipment. Therefore, the above comments are for your information only and in no way relieve the vehicle manufacturer from his responsibility for certifying that the assembled vehicle meets the requirements of the standard.