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- Publications |  | Knowledge**Search 2009 Edition of MUTCD:**2009 MUTCD with Revisions 1 and 2, May 2012
**This is not the most  current version of the MUTCD**.  The current version is the 11th Edition, dated December 2023.

The 2009 Edition with Revision Numbers 1 and 2  incorporated, dated May 2012 may be viewed in PDF format.

The 2009 MUTCD with Revision Numbers 1 and 2  incorporated may also be viewed in HTML format,  which is accessible to individuals with disabilities, per Section 508 of the Rehabilitation Act. **Disclaimer:** While every  effort has been made to assure consistency between the PDF and HTML files  posted on the MUTCD Web site, it is possible that the HTML files may not be  totally identical in content to the PDF files. The PDF files constitute the  official version of the MUTCD and always take precedence over any potentially  conflicting MUTCD text or figures that may occur in the HTML files.
Changes from the 2009 Edition
A document describing how the 2009 Edition with Revisions 1 and 2 incorporated (May 2012) differs from the 2009 Edition (December 2009) is available in PDF (19KB) and HTML.
List of Known Errors in the 2009 MUTCD with Revisions 1 and 2 Incorporated- List of Known Errors in the 2009 MUTCD with Revisions 1 and 2 Incorporated, updated 1/12/2017 (PDF version)  (165KB)
- List of Known Errors in the 2009 MUTCD with Revisions 1 and 2 Incorporated, updated 1/12/2017 (HTML version) 

**NOTE:** FHWA intends to correct these errors via a future rulemaking action. This list of known errors is provided solely for the information of MUTCD users and does not constitute changes to the MUTCD at this time.
Previous MUTCD Editions
To view previous editions of the MUTCD, including the 2009 Edition without Revisions 1 and 2, please visit Previous Editions of the MUTCD. For historical reference and to know what was in effect for a given date, these previous versions will be maintained on this Web site. |
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