FHWA Official Interpretation of Standard Definition Issue 10 -1-10
NCUTCD Letter to FHWA 9-25-10
2010 Response to Federal Rulemaking
2008 Comments on FHWA Docket 2007-28977 - National Stds. for Traffic Control Devices; MUTCD of July 30, 2008
2005 Comments on FHWA Docket 2003-15149 of January 31, 2005 National Stds. for Traffic Control Devices - Maintaining Traffic Sign Retroreflectivity
NACE comments to FHWA Docket on MUTCD Compliance Dates of January 11, 2011