CHANGE ORDER NOTICE - NADIN/AWOS Maintenance - Amendment 1

DOT - Transportation

Published: Jul 29, 2026

Updated: Jul 29, 2026

Source: illinois_bidbuy

About This Opportunity

This is a services contract in the general supplies sector, with a focus on General Supplies. Located in United States, North America, this opportunity is open to firms and consortiums. Proposals must be submitted before August 11, 2026.

Published through Illinois BidBuy, a national government procurement portal. Public procurement tenders follow the country's national bidding regulations and may have specific eligibility and documentation requirements for services in the general supplies sector. Service contracts are typically evaluated on both technical quality and price, and may require bidders to demonstrate relevant experience and qualified personnel. Interested parties should review the full documentation on the original source before submitting their proposal.

Description

This tender notice, bid solicitation number 26-494DOT-FINAD-B-53047, originates from the Illinois Department of Transportation (DOT) in the United States. It is an amendment (Amendment 1) to a previous notice concerning "CHANGE ORDER NOTICE - NADIN/AWOS Maintenance." NADIN (National Aviation Data Interchange Network) and AWOS (Automated Weather Observation System) are critical systems for aviation operations, providing vital weather and operational data. This notice pertains to a change order, which modifies an existing contract for the maintenance of these systems. The DOT is seeking to implement adjustments to the scope, schedule, or cost associated with the NADIN/AWOS maintenance contract. Such amendments are common in long-term service agreements to address evolving technical requirements, unforeseen issues, or updated operational needs within the aviation infrastructure managed by the state.

Data provenance

This notice is sourced from Illinois BidBuy and was originally published on July 29, 2026. Last refreshed today. BidsFactory mirrors official procurement notices and links back to the source for full legal text.

About DOT - Transportation

DOT - Transportation has issued 107 procurement notices on BidsFactory, including 17 currently open and 0 awarded contracts. Activity concentrates in Governance & Public Administration, Transport & Logistics, and General Supplies & Services. All notices are published for United States. Notices are distributed via Illinois BidBuy. Most recent publication: July 29, 2026.

Frequently asked questions about this tender

When does this tender close?

The submission deadline is August 11, 2026. You have 13 days left to prepare and submit your proposal to the contracting authority.

Who is the contracting authority?

This notice was issued by DOT - Transportation in United States. The authority is responsible for evaluating bids, awarding the contract, and managing performance.

What type of contract is this?

This is a Services contract in the General Supplies & Services sector. The classification helps bidders match the opportunity to their qualifications and registered scope of supply.

Where will the contract be performed?

The contract is for delivery in United States. Foreign bidders should review local registration, taxation, and any in-country presence requirements before submitting.

How can I submit a bid?

Visit Illinois BidBuy to access the full notice, required documents, and submission instructions provided by the contracting authority.