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This website and the information it contains are provided as a public service by the Research and Innovative Technology Administration (RITA). This system is monitored to ensure proper operation, to verify the functioning of applicable security features, and for comparable purposes. Anyone using this system expressly consents to such monitoring. Unauthorized attempts to modify any information stored on this system, to defeat or circumvent security features, or to utilize this system for other than its intended purposes are prohibited and may result in criminal prosecution.

Restrictions of Liability

RITA makes no claims, promises or guarantees about the accuracy, completeness, or adequacy of the contents of this website and expressly disclaims liability for errors and omissions in the contents of this website. No warranty of any kind, implied, expressed or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose and freedom from computer virus, is given with respect to the contents of this website or its hyperlinks to other Internet resources. Reference in this website to any specific commercial products, processes, or services, or the use of any trade, firm or corporation name is for the information and convenience of the public, and does not constitute endorsement, recommendation, or favoring by RITA.


Information presented on this website is considered public information and may be distributed or copied. RITA shall have the unlimited right to use for any purpose, free of any charge, all information submitted to RITA via this site except those submissions made under separate legal contract. RITA shall be free to use, for any purpose, any ideas, concepts, or techniques contained in information provided to RITA through this site.

Links to Other Sites

RITA websites have many links to other organizations, such as state/local governments, educational institutions, and nonprofit associations. While we offer these electronic linkages for your convenience in accessing transportation-related information, please be aware that when you exit U.S. DOT websites, the website policies stated on our websites may not be the same as that on other websites.