Interpretation ID: aiam3180
House of Representatives
Washington
D.C. 20515;
Dear Mr. Runnels: This further responds to your November 14, 1979, letter to th Secretary of Transportation concerning Mr. Richard D. Browning's interest in the conversion of automotive engines to run on propane.; From Mr. Browning's letter, I gather that he seeks to produce an market a converter system which will allow conversion of gasoline motors to propane. I have described below the way in which the legislation and regulations under which the National Highway Traffic Safety Administration operates might apply to Mr. Browning's venture. This agency lacks the authority to deal with any emissions control issues arising from production and use of a propane converter system, but the Environmental Protection Agency may have requirements which would apply to such a system. Therefore, we have also referred your letter to that agency in an attempt to expedite a response on this issue.; To date, the National Highway Traffic Safety Administration (NHTSA) ha not exercised its authority pursuant to the National Traffic and Motor Vehicle Safety Act, as amended 1974 (14 U.S.C. 1381 *et seq.*) (the Act), to issue a safety standard applicable to propane-powered vehicles. Federal Motor Vehicle Safety Standard No. 301-75, *Fuel System Integrity*, applies only to vehicles which use fuel with a boiling point above 32 degrees F., and propane has a boiling point well below this temperature. Despite the absence of safety standards specifically applicable to propane-powered engines, a manufacturer or installer of these systems may be subject to other Federal requirements.; Under the Act (sections 151-158), the manufacturer of a propane fuele engine or of the components used for converting a gasoline-fueled engine to propane would be responsible for any safety-related defects in that equipment regardless of whether it were installed in new or in used vehicles. Upon discovery of a safety-related defect by either the Secretary of Transportation, the NHTSA Administrator, or the manufacturer himself, the manufacturer would be required to notify vehicle owners, purchasers and dealers and provide a free remedy for the defect.; Under NHTSA safety regulations, a person who alters a new vehicle prio to its first purchase in good faith for purposes other than resale is required to attach an additional label to the vehicle certifying that, as altered, the vehicle remains in compliance with all applicable safety standards (49 CFR 567.7). This requirement would apply to a person who alters a new vehicle to install a propane fuel system. (See the enclosed pamphlet listing the Federal motor vehicle safety standards and an information sheet explaining where to obtain copies of the standards.) Additionally, should a noncompliance be caused by the modification, the alterer could be liable for a civil penalty unless he or she could establish that he or she did not have actual knowledge of the noncompliance and that he or she did not have reason to know in the exercise of due care that the vehicle did not comply. (Section 108(b)(2)).; A person who installs a propane-fueled engine or converts th gasoline-fueled engine in a used vehicle is not required to affix an alterer's label. However, if that person is a manufacturer, distributor, dealer, or motor vehicle repair business, he must not in the course of installing the propane components knowingly render inoperative any device or element of design originally installed in the vehicle in compliance with applicable Federal motor vehicle safety standards. (Section 108(a)(2)(A) of the Act); I hope that you will find this response helpful. If you or you constituent have any further questions on this issue, I will be happy to answer them.; Sincerely, Frank Berndt, Chief Counsel