Can I use any type of sign sheeting as long as its retroreflectivity meets the minimum specified levels?
The new Table 2A-3 indicates that any type of sheeting including the Type I (commonly called Engineering Grade), Type II (commonly called Super Engineering Grade), or Type III beaded (commonly called High Intensity Beaded) sheeting and the Type III, IV, VI, VII, VIII, IX, or X prismatic sheeting may be used on any sign with the following exceptions: Types I, II, and III beaded sheeting cannot be used for the white legends on overhead guide signs; Type I beaded sheeting cannot be used for the white legends on ground-mounted guide signs; and Type I beaded sheeting cannot be used for the yellow or orange backgrounds on warning and temporary traffic control signs.
