State Aid for Local Transportation

Retroreflectivity implementation toolkit

FHWA implementation guidance

• Sign retroreflectivity guidebook (PDF)
• Maintaining traffic sign retroreflectivity article (PDF)
• Summary of sign retroreflectivity maintenance methods (PDF)

Sign retroreflectivity - Minnesota toolkit

• Toolkit summary (PDF)
• Report (PDF)
• Inspection and inventory sheets (Excel)

Sign sheeting guidance

• Product and regulations - rumors, myths and the straight facts (PDF)
• FHWA retroreflectivity sheeting identification guide (PDF)