Interpretation ID: nht91-6.36

DATE: October 23, 1991

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Al Lipinski -- President, Mini-Max

TITLE: None

ATTACHMT: Attached to letter dated 9-18-91 from Al Lipinski to Messrs. Hall, Jackson, and Rice, NHTSA (OCC 6509)

TEXT:

This responds to your letter asking what the dynamic testing requirements are for alterers of certified vehicles. You stated that you are a small conversion company of walk in van type light trucks, that you do not alter anything forward of the B pillar of the previously certified vehicle, and that the crash protection system installed by the original manufacturer is not disturbed. You also stated that you affix an additional label stating the vehicle alterations conform to all applicable Federal motor vehicle safety standards.

I am pleased to have this opportunity to explain our regulations to you. Some background information on Federal motor vehicle safety laws and regulations may be helpful. As you are aware, our agency is authorized, under the National Traffic and Motor Vehicle Safety Act (15 U.S.C. S1381 et seq.; Safety Act), to issue safety standards applicable to new motor vehicles and certain items of motor vehicle equipment. NHTSA, however does not approve motor vehicles or motor vehicle equipment, nor do we endorse any commercial products. Instead, the Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards.

Under NHTSA's certification regulation, an alterer is a person who alters previously certified vehicles by means other than the addition, substitution, or removal of readily attachable components, or minor finishing operations, or in such a manner that the vehicle's stated weight ratings are no longer valid, before the first purchase of the vehicle in good faith for purposes other than resale. An alterer is required to certify that every vehicle it alters continues to comply with all applicable safety standards after the alterer has performed its operations on the vehicle. See 49 CFR Part 567.7.

Alterers must have some independent basis for their certification that an altered vehicle continues to comply with all applicable safety standards. This does not, however, mean that an alterer must conduct crash testing, even with respect to standards that include dynamic test requirements. Certifications of continuing compliance for altered vehicles may be based on, among other things, engineering analyses, computer simulations, actual testing, or instructions for alteration voluntarily provided by the original vehicle manufacturer in a "body builder's guide."

Your letter suggests that you are primarily concerned about the dynamic test requirements of Standard No. 208 Occupant Crash Protection. I note that in establishing that standard's dynamic test requirements for light trucks, NHTSA made those requirements optional for walk in van type trucks. See S4.2.2 of Standard No. 208. Thus, the walk in van type

trucks you alter were not required to comply with the Standard No. 208's dynamic test requirements and may not have been designed to do so. You can find out by contacting the original vehicle manufacturer.

I hope this information is helpful.