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Nighttime Visibility


Technical Contacts

The following list provides information about several national and state-based organizations that are knowledgeable about sign retroreflectivity and the MUTCD. They can provide assistance to State, local, tribal and federal land management agencies.

  • Local Technical Assistance Program (LTAP) Centers and Tribal Technical Assistance Program (TTAP) Centers – In each state, an LTAP Center exists to provide technical information and training for local governments and agencies that own and maintain public roads. There are also four TTAP Centers. These centers are funded by the Federal Highway Administration (FHWA) and provide resources to any local government / agency and all tribal governments.
  • State DOTs – State DOT Traffic Engineers at central and field offices are very knowledgeable about signing requirements.
  • American Public Works Association (APWA)The APWA is an international member organization of public agencies, private sector companies, and individuals involved in public works management and delivery of goods and services. Among the many benefits, member agencies exchange ideas and bring important public works topics to discussion at local, state, and national conferences.
  • National Association of County Engineers (NACE) – The National Association of County Engineers (NACE) is a member organization comprised of county engineers and others in related positions who are responsible for the operations and maintenance of local county roads. The organization provides outreach efforts to its members in the form of state and national conferences, newsletters, training, and assistance on a wide range of technical and legislative issues.
  • American Traffic Safety Services Association (ATSSA) – The American Traffic Safety Services Association (ATSSA) is a member organization that represents the road, traffic, and highway safety industries with legislative advocacy, traffic control safety training, and member partnership.
  • Federal Land Management Agencies – Several of these agencies own and operate roads open for public travel. Signs on these roads must meet the MUTCD, including the minimum retroreflectivity standards. Staff of these agencies should develop a strategy to meet these requirements and make the necessary budget requests through their administration.
Page last modified on February 5, 2018
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