Standard: 01 When it is determined that a full stop is always required on an approach to an intersection, a STOP (R1-1) sign shall be used. 02 The STOP sign shall be an octagon with a white legend and border on a red background. 03Secondary legends shall not be used on STOP sign faces. 04 At intersections where all approaches are controlled by STOP signs (see Section 2B.07), an ALL WAY supplemental plaque (R1-3P) shall be mounted below each STOP sign. The ALL WAY plaque shall have a white legend and border on a red background. 05 The ALL WAY plaque shall only be used if all intersection approaches are controlled by STOP signs. 06 Supplemental plaques with legends such as 2-WAY, 3-WAY, 4-WAY, or other numbers of ways shall not be used with STOP signs.