Interpretation ID: nht79-2.28

DATE: 09/11/79

FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA

TO: Dixson, Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

NOA-30

Mr. Clay Lansdown Chief Engineer H. D. Instrument Division Dixson, Inc. P. O. Box 1949 Grand Junction, Colorado 81501

Dear Mr. Lansdown:

This is in response to your letter of August 8, 1979, asking whether construction, mining and agricultural machinery must comply with the requirements of Federal Motor Vehicle Safety Standard No. 127. In order for a vehicle to fall within the ambit of Standard 127 or any other safety standard it must be a motor vehicle. Section 103(3) of the National Traffic and Motor Vehicle Safety Act of 1966 (15 U.S.C. 1381 et seq.) defines a motor vehicle as

any vehicle drawn or driven by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails.

Thus, a motor vehicle is a vehicle which the manufacturer expects will use the public highways as part of its intended function.

There are two exceptions to the above rule that permit certain vehicles to use the highways without being considered motor vehicles. Agricultural equipment that is strictly used in farm fields and only incidentally uses the roads adjacent to those fields has been excepted from the definition of motor vehicle. However, not all agricultural equipment is excepted from the definition of motor vehicle. A piece of agricultural equipment, like any other vehicle, that uses the public streets and roads not adjacent to the fields on a necessary and recurring basis would be considered to be a motor vehicle and must meet the requirements of Standard 127 and the other safety standards.

The agency has further excepted certain vehicles from the definition of motor vehicle despite frequent highway use. Some maintenance and construction equipment whose maximum speed does not exceed 20 miles per hour and whose abnormal configuration distinquishes them from the traffic flow are not considered motor vehicles.

I suggest that you contact the manufacturers to whom you are selling your equipment. It is their responsibility initially for determining whether use on the public highways is part of the vehicles' intended function. The enclosed information sheet should be helpful in making that determination.

Sincerely,

Frank Berndt Chief Counsel

Enclosure

August 7, 1979

National Highway Traffic Administration United States Department of Transportation Docket No. 76-06 Speedometer-Odometers 400 Seventh Street S. W. Washington, D. C. 20590

Dear Sir,

Our product line includes electronic speedometer-odometers. A significant portion of the units we manufacture are sold to manufacturers of construction, mining, and agricultural machinery. I am not sure if S3 of Standard 127 defines vehicles of the type listed above. These vehicles do on occasion, travel on highways, and in some cases are used to repair and build highways. The speedometers in these vehicles rarely, if ever, have markings above 40 MPH I wish to know if these vehicles are defined by S3 of Standard 127 in order to determine if the speedometers are required to meet S4.1.1 and S4.1.3 of Standard 127.

Sincerely,

DIXSON, INC.

Clay Lansdown Chief Engineer aH. D. Instrument Division

CL/ms