Invitation for Bids

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Request for Proposals

Microtransit Services

Notice Inviting Proposals For Microtransit Services RFP #2019-003 (PDF)
RFP #2019-003 Microtransit Services - Details (PDF)
RFP #2019-003 Microtransit Services- Addendum 1 (PDF)
RFP #2019-003 Microtransit Services- Addendum 2 (PDF)
RFP #2019-003 Microtransit Services- Addendum 3 (PDF)
RFP #2019-003 Microtransit Services- Addendum 4 (PDF)
RFP #2019-003 Microtransit Services- Addendum 5 (PDF)
RFP #2019-003 Microtransit Services- Addendum 6 (PDF)
RFP #2019-003 Microtransit Services- Addendum 7 (PDF)
RFP #2019-003 Microtransit Services- Addendum 8 (PDF)

Bus Advertising Services

Notice Inviting Proposals For Bus Advertising Services RFP # 2019-004 (PDF)
RFP #2019-004 Bus Advertising Services - Details (PDF)
Bus Advertising Services RFP # 2019-004- Addendum 1 (PDF)
Bus Advertising Services RFP # 2019-004- Addendum 2 (PDF)

Bus Route Evaluation and Redesign

RFP #2020-001 Bus Route Evaluation and Redesign- Details (PDF)
Bus Route Redesign RFP # 2020-001- Addendum 1 (PDF)
Bus Route Redesign RFP # 2020-001- Addendum 2 (PDF)
Bus Route Redesign RFP # 2020-001- Addendum 3 (PDF)
Bus Route Redesign RFP # 2020-001- Addendum 4 (PDF)

Bus Shelters with Amenities

RFP #2020-002 Bus Shelters with Amenities- Details(PDF)
RFP #2020-002 Bus Shelters with Amenities- Addendum 1(PDF)
RFP #2020-002 Bus Shelters with Amenities- Addendum 2(PDF)

Audit of Financial Statements

Notice Inviting Proposals For Audit of Financial Statements RFP # 2020-003(PDF)
RFP #2020-003 Audit of Financial Statements - Details (PDF)

How to submit a bid/proposal

Each formal solicitation package includes the due date, time, and any additional information for your submittal, including the date and time bids will be publicly opened, if applicable. Formal bids are generally opened publicly at Tri Delta Transit’s administrative office, 801 Wilbur Avenue, Antioch, CA 94509. Staff announces the names of firms and the submitted bids.

  • Be Timely. Submit your bid/proposal by the date and time specified. Late bids/proposals will not be accepted.
  • Read the bid/proposal general provisions and special provisions. Each bid/proposal may contain a number of conditions/provisions.
  • Adhere to bid/proposal conditions.
  • Complete and submit all bid/proposal forms. Failure to complete and submit the forms by the due date will result in rejection of the bid/proposal.

Upcoming IFB/RFP Procurement Opportunities

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