Haw. Code R. tit. 11, subtit. 1, ch. 219, exh. 2
1. It is recommended that sign(s) comply with the uniform standard prescribed by the Manual on Uniform Traffic Control Devices for Streets and Highways (incorporated by reference in 23 CFR Part 655, Subpart F).
2. Sign lettering shall be uppercase letters of the type approved by the Federal Highway Administration.
3. Elements (text and graphic) required on sign may be placed on more than one sign. Dimensions of elements on sign are minimum requirements.