2016-1. April 7, 2016. The FHWA has withdrawn the December 12, 2012 memo. Until FHWA updates its regulatory policy, CDOT and local public agencies administering Federal-aid projects must use the embedded Buy America requirements on all projects advertised on or after May 5, 2016.
Archived Bulletins
2012-1. July 11, 2012. This bulletin corrects an error within the Quality Assurance Schedule (page 11) for both the 2012 Field Materials Manual and the recently released 2013 Field Materials Manual.
2010-1. December 09, 2010. The intent of this Materials Bulletin is to publish CP 59 prior to the 2012 CDOT Field Materials Manual (FMM) being available on July 1, 2011.
2009-1. November 23, 2009. Revision of Section 702 - Bituminous Materials.
2017-1. August 23, 2017. When CP 62 was revised, a new mix design approval process was created along with a concrete mix design Approved Products List (APL).