Interpretation ID: nht75-4.34
DATE: 06/23/75
FROM: AUTHOR UNAVAILABLE: R. L. Carter; NHTSA
TO: Volkswagen of America, Inc.
TITLE: FMVSS INTERPRETATION
TEXT: This responds to Volkswagen of America's March 25, 1975, petition for rulemaking to amend S4.5.3.3 of Standard No. 208, Occupant crash protection, to allow, at the manufacturer's option, visual warning lamps which remain activated whenever front outboard safety belts are not in use. Your petition states that it supersedes Volkswagen's February 20, 1975 petition for rulemaking.
Your petition explains that Volkswagen, in offering a passive belt system in its Rabbit model on an optional basis, provides an ignition interlock system and a passenger-side warning system to encourage passive belt usage, although such systems are not required by the standard. You correctly note that a January 16, 1975, letter to Volkswagen from the NHTSA Office of Chief Counsel indicates that additional safety devices such as these are not prohibited by our minimum safety standards, as long as their installation does not have the effect of causing required systems not to comply.
Your petition requests an amendment of Standard No. 208's warning provisions to permit a visual warning longer than the 4- to 8-second reminder light presently required by S4.5.3.3. You apparently have concluded that language in our January 16 letter prohibits the provision of any additional visual warning with a duration different than 4-8 seconds.
Our January 16 letter states "additional [safety] devices could not be installed if that installation has the effect of causing the required systems not to comply." This does not prevent the installation of a second visual warning which operates continuously when seat belts are not in use at either front designated seating position. The manufacturer who provides such additional warning would only have to ensure that the required 4- to 8-second visual reminder required under S4.5.3.3 operates independently of the additional warning.
For this reason, we conclude that Volkswagen may provide the additional warning it desires without amendment of Standard No. 208. Accordingly, Volkswagen's petition is denied as unnecessary. Please advise the NHTSA if this interpretation does not permit Volkswagen to provide the degree of additional warning for which it petitioned.
SINCERELY,
March 25, 1975
James B. Gregory Administrator National Highway Traffic Safety Adminstration U. S. Department of Transportation
SUBJECT: Petition for Rulemaking
The enclosed Petition for Rulemaking of FMVSS 208 supercedes and replaces Volkswagen's Petition for Rulemaking of FMVSS 208 dated February 20, 1975.
VOLKSWAGEN OF AMERICA, INC.
J. W. Kennebeck, Manager
Emissions, Safety & Development
Petition for Rulemaking
of
Federal Motor Vehicle Safety Standard No. 208
Volkswagenwork Aktiengesellschaft Volkswagen of America, Inc.
Petitioners
TO
Administrator, National Highway Traffic Safety Administration U. S. Department of Transportation
Petition for Rulemaking
Motor Vehicle Safety Standard 208
Request to allow S4.5.3.3 to allow, at manufacturer's option, visual warning lamps which remain activated whenever front outboard safety belts are not in use.
Background:
In October, 1973, Volkswagen petitioned NHTSA to amend MVSS 208 to specify emergency release interlock and warning systems for vehicles equipped with passive belt restraint systems. Based on NHTSA's response to this petition (Docket 74-4; Notice 2), VW laid firm production plans for its diagonal belt/energy absorbing knee panel passive restraint system for incorporation in a new model, the Rabbit.
In October, 1974, President Ford signed into law the Motor Vehicle and Schoolbus Safety Amendments of 1974, which stipulated that new regulations be written by NHTSA to effectively eliminate requirements for starter interlocks and long duration warning buzzers.
NHTSA responded quickly by eliminating all requirements in MVSS 208 for the starter interlock, and with a proposal for a new warning system (in S4.5.3.3) which, for passive belts, represented a change from continuous lights and buzzers, activated when either front outboard belt was disconnected, to four- to eight-second light warnings activated after ignition is turned on, with concurrent buzzers activated if the driver's belt was disconnected.
Between November 1974 and February 25, 1975, the effective date for the new warning systems, VW produced Rabbits for sale in the U.S. with optional passive restraints, equipped with the "old" warning system permitted under MVSS 208 until February 25. These vehicles were also fitted with starter interlocks for the emergency release. Excellent sales volume of early Rabbits largely depleted supplies of vehicles fitted with the passive restraint, and Volkswagen saw a need to produce more passive restraint cars after February 25 so that we could continue to offer our customers the passive restraint on an optional basis.
A letter from Mr. R. Dyson, Esq. (copy attached), confirmed that since starter interlocks were not regulated in any NHTSA regulation, they were not prohibited and could be installed at the manufacturer's option. Based on this interpretation, VW continued to fit its passive restraint cars with starter interlock. However, Volkswagen feels that the emergency release starter interlock must be supplemented by an effective warning system to inform the driver why he cannot start the car and to discourage occupants from unbuckling the belt while driving, although it is much easier to wear the belt properly than to defeat it. Therefore, we petitioned NHTSA with our letter of February 20, 1975, to allow manufacturers to continue to produce a more effective warning system, i.e. the "old" system.
While this petition was under consideration, our engineers have been able to develop on short notice, a warning system which meets the new S4.5.3.3, and, in addition, provides that release of the passenger's belt, as well as the driver's belt, as stipulated in the rule, activates the buzzer system during the specified four- to eight-second period. In a telephone conversation with NHTSA Legal Counsel, it was decided that this feature is allowed under MVSS 208 because the driver's side requirement is only a minimum standard.
However, we feel this warning system is not adequately effective, as it does not warn the occupants when a belt becomes disconnected after the four- to eight-second warning period. Therefore, by making a simple change to the visual warning, we developed a more effective system which satisfies the letter and the intent of Section 109 of the "Motor Vehicle and Schoolbus Amendments of 1974" and, we believe, satisfies the intent of MVSS 208 in meeting the basic provisions of S4.5.3.3. The substantive request of this petition is merely to allow a system in which the visual warning can remain activated indefinitely if belts are not in use, at the manufacturer's option. Although we still feel that the most effective warning system available (the "old" system specified formerly under MVSS 208) offers the greatest safety benefits, we submit the following proposal with the hope that it will meet more favorable response from NHTSA.
DESCRIPTION OF PROPOSED NEW WARNING SYSTEM
1. The warning light activates for a period of four to eight seconds after the ignition switch is moved to the "on" position, when both passive belts are in use, as determined by emergency release being buckled.
2. The audible signal activates for a four- to eight-second period after the ignition is switched to the "on" position if one or both front outboard belts are not in use, as determined by the emergency release belt latch mechanism not being fastened.
3. In addition to the above, the warning light activates continuously whenever the ignition switch is in the "on" position and either front outboard belt is not in use, as determined by the emergency release being unbuckled, regardless of the elapsed time after the ignition has been switched "on".
Since Section 109 of the Public Law 93-492, the "Motor Vehicle and Schoolbus Safety Amendments of 1974," does not address the time duration of visual warning systems, we believe our proposed system satisfies the wording and intent of the law.
Therefore, Volkswagen petitions NHTSA to amend MVSS 208, S4.5.3.3 to allow, at the manufacturer's option, passive belt systems to retain the warning lamps with indefinite activation when belts are not in use. We suggest that the following words might be used:
Subparagraph S4.5.3.3 (b) (1) is amended to read:
(1) At the left front designated seating position (driver's position), and, at the manufacturer's option, at the right front designated seating position, be equipped with a warning system that activates, for a period of not less than four seconds and not more than eight seconds (beginning when the vehicle ignition switch is moved to the "on" or the "start" position), a continuous or flashing warning light, visible to the driver, displaying the words "Fasten Seat Belts" or "Fasten Belts" when condition (A) exists, and a continuous or intermittent audible signal when condition (A) exists simultaneously with condition (B), and, at the manufacturer's option, activates a continuous or flashing warning light, visible to the driver displaying the words "Fasten Seat Belts" or "Fasten Belts" when condition (A) exists simultaneously with condition (B).
(A) The vehicle's ignition switch is moved to the "on" position or to the "start" position.
(B) The driver's lap belt, or, at the manufacturer's option, either the driver's or the right front passenger's belt, is not in use, as determined by the belt latch mechanism not being fastened.
VOLKSWAGEN OF AMERICA, INC.
July 11, 1975
Tad Herlihy, Esq. Chief Counsel Office of the Administrator NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION Subject: Letter from Robert L. Carter Dated June 23, 1975
This will confirm our recent telephone conversation advising that our engineers are not entirely happy with the suggestion that we install a continuous warning light in addition to the 4-8 second lamp.
It is our intention to reaffirm our Petition for Rulemaking previously submitted to your office and plan to submit additional supporting data as soon as the annual factory recess in Germany has ended. We hope to be able to have this information on file in Washington no later than the last week in August or the first week in September.
Gerhard P. Riechel
Attorney