70:04:03:05Prohibited

methods of lighting of directional signs. The following methods of lighting directional signs are prohibited: (1) Flashing, intermittent, or moving light; (2) Lighting which allows rays of light to be directed at any portion of the main-traveled way; (3) Lighting of such intensity or brilliance as to cause glare or impair the vision of the driver of any motor vehicle; and (4) Lighting which interferes with the effectiveness of or obscures an official traffic sign, device, or signal.

Source: 6 SDR 99, effective April 13, 1980; transferred from § 70:01:06.03:05, effective November 1, 1986; 13 SDR 129, 13 SDR 134, effective July 1, 1987.