High Intensity and Diamond Grade Meet DOT and MUTCD State and Federal Guidelines
MUTCD Information: The R3-10, R3-11, R3-11a, R3-11c, R3-13, R3-13a, R3-14 and R3-14a (HOV Lane Assignment sign) signs shall be used exclusively with preferential only lanes for high-occupancy vehicles to indicate the particular occupancy requirement and time restrictions applying to that lane.