Federal Manual: On Traffic Control Devices

A recommended but not strictly mandatory practice. These statements use the word "should" .

Substantial conformance with the MUTCD is required by law; failing to comply can expose government agencies and contractors to severe liability and litigation. 🛠️ The Four Text Classifications Federal Manual On Traffic Control Devices

Informational statements that provide background, data, or context without containing any mandates, recommendations, or permissions. 📖 Major Categories of Traffic Control Devices A recommended but not strictly mandatory practice

A mandatory, required, or strictly prohibitive practice. These statements use the word "shall" and appear in bold text. or context without containing any mandates