Idaho Code § 39-5508
Signs shall be appropriately sized, conspicuous, legible with letters at least one (1) inch in height, unobscured, and placed at a height and location easily seen and read by persons entering or within the posted area. Signs may contain information such as the international smoking and no smoking symbols and references to this chapter.
[39-5508, added 2025, ch. 64, sec. 3, p. 304.]