The criteria for the composition, fabrication, and size of business signs to be placed on panels and supplemental panels are as follows:
(1) Business signs shall be fabricated from reflective sheeting applied to aluminum backing having a minimum thickness of 0.063 inches. The sheeting must meet the requirements of ASTM Standard D4956 Type IV;(2) Business signs not displaying a symbol or trademark shall have a blue reflectorized background with a white reflectorized legend and border;(3) If business identification symbols or trademarks are used alone, the sign may be reproduced in the colors, shape, and design customarily used. See Figure 1 at the end of this chapter;(4) Messages, symbols, and trademarks that resemble any official traffic control device are prohibited;(5) The principal legend of a business sign shall be the same height as the directional legend on the panel. However, if a symbol or trademark is used alone, the principal legend shall be in proportion to the size of the symbol or trademark. See Figure 1 at the end of this chapter;(6) Silk screen or direct application may be used to develop the sign face;(7) Freehand painting may not be used on any part of the finished sign face;(8) Business signs for panels at interchanges shall have a three-inch corner radius and, if used, a three-quarter inch border. Gas, food, lodging, camping, or attraction signs may be no more than 60 inches wide by 36 inches high and shall be contained in a rectangular area. See Figure 1 at the end of this chapter;(9) Business signs for panels at intersections shall have a two-inch corner radius and, if used, a one-half inch border. They may be no more than 36 inches wide by 24 inches high and shall be contained in a rectangular area. See Figure 1 at the end of this chapter;(10) Business signs for supplemental panels and trailblazing shall have a one and one-half inch corner radius and, if used, a three-eighths inch border. Gas, food, lodging, camping, or attraction signs may be no more than 30 inches wide by 18 inches high and shall be contained in a rectangular area. See Figure 1 at the end of this chapter; and(11) There shall be a legend on the business sign on the supplemental panel which is a duplicate of the legend of the business sign on the panel;(12) A business sign may not display the symbol, trademark, or name of more than one business.S.D. Admin. R. 70:04:02:16
6 SDR 99, effective 4/13/1980; transferred from General Authority: SDCL 31-29-80.1.
Law Implemented: SDCL 31-29-63(6), 31-29-80.1.
ASTM D 4956-11a, "Standard Specification for Retroreflective Sheeting for Traffic Control," page 499, Volume 4.03, Annual Book of ASTM Standards, Section Four, Construction, The American Society for Testing and Materials, 2013 edition. Copies may be obtained from ASTM International at 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959; cost: $309. A photocopy of the standard may be obtained from the office of the Secretary, Department of Transportation, Becker-Hansen Building, 700 East Broadway, Pierre, South Dakota 57501 for $18.80.