Code of Colorado Regulations
200 - Department of Revenue
204 - Division of Motor Vehicles
1 CCR 204-10 - VEHICLE SERVICES SECTION
50 - SLOW MOVING VEHICLES
Current through Register Vol. 47, No. 17, September 10, 2024
1. All machinery and equipment, including implements of husbandry, horse drawn vehicles, farm tractors, road machinery, road graders, and every vehicle which has a maximum speed that does not exceed 25 miles per hour or every vehicle capable of speeds in excess of 25 miles per hour but which in its normal operational use is moved at less than 25 miles per hour on the highway, shall display a "Slow Moving Vehicle" emblem complying with the specifications set forth in Section 7 of this regulation.
2. All road construction or maintenance machinery when engaged in actual construction or maintenance work guarded by a flagman or clearly visible warning signs need not display the "Slow Moving Vehicle" emblem.
3. All machinery, equipment and vehicles displaying such Slow Moving Vehicle emblem, when being transported or moved on the highways at speeds in excess of 25 miles per hour, shall have the Slow Moving Vehicle emblem removed or covered when being so moved or transported.
4. Any combination of slow moving vehicles, i.e., tractor-trailers, shall display the "Slow Moving Vehicle" emblem on the rearmost unit of the combination.
5. The Slow Moving Vehicle emblem shall be mounted as near the center as possible on the rear of the vehicle at a height of not less than 2 feet nor more than 6 feet from the ground to the bottom edge of the emblem. Such emblem will be mounted with a point of the triangle at the top and shall be mounted in a plane perpendicular to the direction of travel.
6. The requirements for such emblem shall be in addition to any other lighting devices required by law.
7. Specifications for SLOW MOVING VEHICLE Emblem.
TABLE 1. Minimum Reflective Intensity Values, R*
|
Divergence Angle, deg |
Incidence Angle, deg |
Reflective Intensity, R |
|
0.2 |
0 |
10 |
|
0.2 |
15 |
7 |
|
0.2 |
30 |
5 |
|
0.5 |
0 |
5 |
|
0.5 |
15 |
4 |
|
0.5 |
30 |
2 |
*Measurements shall be conducted in accordance with photometric testing procedures for reflex-reflectors as specified in Society of Automotive Engineers Standard, SAE J594, Reflex Reflectors, and using 50, ±3 sq. in. (322.6, ± 32.3 sq. centimers) of reflective material. The maximum dimension of the test surface shall not be greater than 1.5 times the minimum dimension. The Reflective Intensity (R) is computed from the equation.
where
R = reflective intensity, candlepower per incident foot-candle per square foot
Lr = illumination incident upon receiver at observation point, foot-candles
Ls = illumination incident upon a plane perpendicular to the incident ray at the test specimen position, foot-candles
d = distance from test specimen to source of elimination (100 feet as specified in SAE J594), feet
A = area of test surface, square feet
NOTE: These requirements are minimal and do not preclude the use of materials having superior performance.
Section B- Samples for test
Section D- Laboratory Facilities
Section E- Vibration Test
Section H- Corrosion Test (pertains to face of emblem only)
TABLE 2. Durability Test Periods
|
Minimum Test Period, months |
Minimum Test Period, months |
|
|
Location |
Fluorescent |
Reflective |
|
Outside in Midwest |
12 |
24 |
|
Or |
||
|
Outside in Miami, Florida |
6 |
12 |
8. All "Slow Moving Vehicle" emblems must be approved for use and sale in the State of Colorado by the Department of Revenue. Such approval shall be accomplished through the A.A.M.V.A. Equipment Approval Section, Washington, D.C.
FIG. 1 - IDENTIFICATION EMBLEM
