About this file

This Addendum 1 to IFB 56A9016 modifies the solicitation for maintenance and repair services of Transportation Management Systems (TMS) elements and communications infrastructure across nine Northern California counties (Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma) issued by the California Department of Transportation (Caltrans). The addendum provides clarifications, modifications, or additional information to the original Invitation for Bids, though the specific amendments are not detailed in the file summary provided. Bidders are required to acknowledge receipt of this addendum as part of their proposal submission, and failure to do so may result in bid rejection.

The addendum serves as a binding modification to the solicitation terms and conditions, and all prospective bidders must incorporate the changes into their bid responses. Contractors should review the addendum in conjunction with the original IFB documents to ensure full compliance with all current requirements. Interested parties requiring accessible versions of solicitation documents should contact ADAdocs@dot.ca.gov or call (833) 713-2922 for assistance.

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DEPARTMENT OF TRANSPORTATION

ADMINISTRATION

DIVISION OF PROCUREMENT AND

CONTRACTS

1727 30th STREET, MS-65

SACRAMENTO, CA 95816

PHONE (916) 227-6000

TTY 711

https://dot.ca.gov/programs/procurement-and- contracts/

November 2, 2026

Addendum No. 1 Invitation for Bid (IFB) #56A9017

Maintenance and Repair of the Transportation Management Systems Elements and Communications Infrastructure (TOSNET) in Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, and Sonoma Counties Counties.

NOTICE TO ALL PROSPECTIVE BIDDERS:

Addendum No. 1 is being issued for the above-referenced IFB. Bids for this work shall be with the full understanding of this Addendum.

The following represents changes for this IFB:

1) This IFB Solicitation has been canceled. Please see IFB Solicitation 56A0917 for details on this project.

If you should have questions regarding this addendum, please contact me Lawrence Coleman at

(279) 234-2403, or email: nyle.coleman@dot.ca.gov

Nyle Coleman Nyle Coleman Contract Analyst

File details come from the government source that posted it. Updated .