Warning sign placement must comply with which standards?

• A. MUTCD and TTCP
• B. Local only
• C. MUTCD only
• D. None

Answer: (A)

Warning sign placement follows both national and state-specific guidance to ensure safety and consistency. The MUTCD provides the universal rules for the design, size, retroreflectivity, and spacing of warning signs across all roads. In Montana, the TTCP adds state-specific requirements for temporary traffic control in work zones, adapting the MUTCD guidance to Montana conditions and practices. Together, they ensure warning signs meet broad safety standards while also conforming to local procedures for temporary conditions. Local-only would miss national standards, MUTCD-only would ignore Montana-specific rules, and none would neglect essential guidelines.