Construction Publications@DOT construction.publications at dot.ca.gov
Fri Mar 23 16:51:52 PDT 2018

Dear Subscriber:

We have posted CPB 18-2, "Implementation of Automated Machine Guidance (Revised)" on our website:


This bulletin directs that new contracts with more than 5,000 cubic yards of earthwork include automated machine guidance (AMG) specifications for contractor's optional use of AMG. The California Department of Transportation makes electronic design files available to bidders during project advertisement. Guidance instructs resident engineers to notify the Division of Surveys and the project engineer of changes to terrain or earthwork quantities so that electronic design files can be made current. Effective project communication with all parties and sharing updated design digital files with the contractor is a critical step in the implementation of AMG. New specifications and provisions govern the use of AMG instead of the past practice of issuing a change order with AMG requirements.

Construction Publications

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