Below: 3M GA1616 Reflective Gate Arm Tape. The US DOT FHWA Manual on Uniform Traffic Control Devices (MUTCD) 2009 Edition, Section 8C.04, Paragraph 05 states "Gate arms shall be fully retroreflectorized on both sides and shall have vertical stripes alternatively red and white at 16-inch intervals measured horizontally".
Below: Type III High-Intensity Ultra-Lite Grade (ULG) Orange & White and Red & White Reflective Barrier & Barricade Tape. ULG is a flexible, 11-mil thick, encapsulated lens (glass-bead) type hazard-striped Type III reflective tape. It has an aggressive permanent acrylic adhesive with a peel-off backing . Meets all ASTM D 4956 requirements. This striped reflective tape has 6" wide stripes and is ideal for hazard warning barriers, road-end reflective barricades, and any equipment requiring high visibility warning. Will adhere well to smooth concrete. It is warranted for 10 years. Material has a dove-gray honeycomb appearance in daylight as seen at top of page, but reflects white at up to 250 Cd/Lux/sq. m. at night as seen below. Both patterns are also available in widths of 7", 8" 10" and 12" by special order.
*NFPA 1901: Following are excerpts from the National Fire Protection Agency's 2009 NFPA 1901 Standard for Automotive Apparatus (fire trucks):
"220.127.116.11: At least 50% of the rear vertical surfaces of the apparatus shall be equipped with a minimum 4 inch wide alternating yellow and red chevron retro-reflective striping sloping downward and away from the centerline of the vehicle at an angle of 45 degrees."
"18.104.22.168: All retro-reflective material required by 22.214.171.124 and 126.96.36.199 shall conform to the requirements of ASTM D 4956, Standard Specification for Retro-reflective Sheeting for Traffic Control, Type I or better."