TxDOT Contractor Requirements: Prequalification, Bonds and Insurance

Item 1, Section 3.20, defines bidding capacity as the maximum dollar value a contractor may have under contract with the department at one time. Item 2, Article 3, uses it as a gate: a bidder gets a proposal form only if the engineer's estimate is within its available bidding capacity. On a joint venture, each participant must cover an equal share of the estimate from its own capacity, so a small partner can limit what the venture is able to bid.

The Prequalification page says capacity is net working capital multiplied by a TxDOT factor but does not state the factor. TxDOT's Notice to Contractors issued November 12, 2024, effective October 31, 2024, raised the factor from 20 to 30 and raised the minimum capacity for a CQ bidder with an audited statement from $1 million to $2 million, for a firm with at least two years' experience and four completed projects. The same notice raised the BQ minimum from $300,000 to $1 million and set a compiled-statement ladder for BQ bidders: $1.5 million after one year of experience, $2 million after two, then $500,000 more per year up to $6 million. The rule text behind these figures, 43 TAC §9.12, was confirmed only through that notice, so confirm the current factor and minimums with TxDOT before relying on them.

The 2024 specifications do not set a bid bond percentage. Item 2 says to provide a proposal guaranty in the amount indicated on the proposal form. A past TxDOT proposal, built on the 2014 specifications, set its bid bond at 2 percent of the engineer's estimate, rounded to the nearest thousand dollars and capped at $100,000; confirm the amount in the current proposal for each letting.

Contract bonds follow Item 3, Section 4.2, Table 1. Contracts under $25,000 need no bond, contracts from $25,000 to $100,000 need a payment bond only and contracts over $100,000 need both performance and payment bonds. The bonds are due within 15 days after written notice of award and are executed in the full amount of the contract. The surety must be authorized to do business in Texas, and if it becomes insolvent, loses its authority or its underwriting limitation drops below the contract amount, the contractor must furnish a substitute surety in the original full contract amount within 15 days of notification. Item 9 also pays an extra 1 percent of force-account compensation for the increase in bond on extra work.

Item 3, Section 4.3, Table 2, sets the insurance a contractor keeps in force until final acceptance. Commercial general liability is not less than $600,000 each occurrence, business auto is $600,000 combined single limit and workers' compensation is statutory, with a waiver of subrogation endorsement in favor of the department. Builder's risk at 100 percent of the contract price applies to building-facilities contracts only. The specification states that if coverage lapses for any reason, all work stops. Subcontractors must meet Table 2 through their own coverage or the contractor's.

Proof goes on TxDOT Form 1560, Certificate of Insurance (Rev. 07/24), or an Acord form, which the form names as the preferred certificates. The form preprints the same minimums, allows a split general liability limit of $500,000 bodily injury each occurrence with $100,000 property damage each occurrence and in the aggregate, and lists umbrella coverage only "if applicable" with no amount. Binder numbers are not accepted as policy numbers, previous editions may not be used and an updated form must reach TxDOT one business day before a policy expires. Group health does not substitute for workers' compensation. Form 1560 has no additional insured field, and Items 1-10 set no general additional insured requirement, so any additional insured terms come from the project's contract documents; the form itself does not require them. Completed operations and an umbrella minimum are also not stated in Items 1-10.

TxDOT does not publish one railroad limit in the general specifications. Item 3 says that for contracts with railroad requirements, the contractor looks to project-specific details for additional insurance, and Item 5, Article 8.2, points to the plan sheets for railroad insurance, flagging and right of entry agreements. A project that crosses or parallels a railroad can therefore carry railroad protective liability amounts and entry terms that appear nowhere else in the specifications, and they can vary from one proposal to the next.

Indemnity sits in Item 7, Article 15, Responsibility for Damage Claims. The contractor must indemnify and save harmless the State and its agents and employees from suits, actions or claims due to the contractor's negligence, and the same article addresses damage to pipelines and underground installations. Article 3 covers violations of law and Article 5 covers patent infringement. Whether a contractor's liability policy responds to a given indemnity claim depends on its contractual liability terms, the policy form and the facts, and it can vary by carrier guidelines and programs.

Item 8, Article 2, requires the engineer's written approval to sublet work and requires the prime to perform work with its own organization on at least 30 percent of the total original contract cost. The figure drops to 25 percent for a small business enterprise on a wholly state- or locally funded contract, specialty items are excluded from the count and subcontractors must be registered in E-Verify. For surety purposes, the self-performed share is the part of the job that rides on the prime's own crews and equipment, which is one reason underwriters typically ask how much of a TxDOT bid the firm intends to sublet.

Item 9, Articles 8 and 9, state that the department will not withhold retainage on the contractor. The prime pays each subcontractor within 10 days after TxDOT pays the prime and releases subcontractor retainage within 10 days after that subcontractor's work is satisfactorily complete, and these terms must be written into every subcontract and material purchase agreement at all tiers. Item 6, Article 3, also has the contractor transfer to TxDOT the warranties and guarantees required by the contract or received in normal trade practice. Encroachment permits for work in the state highway right of way are a separate process, explained in the Texas encroachment permit bond guide.

The Texas Transportation Commission approved the 2027 Unified Transportation Program at its August 2026 meeting, and TxDOT announced it on August 26, 2026, as a 10-year plan with a total projected investment of $138 billion, including $95 billion for projects across the state. For a contractor, the planning question is less the headline figure than how many of those lettings fit inside both the TxDOT bidding capacity and the aggregate program the surety is prepared to support.

Those two numbers are set separately. TxDOT's capacity comes from audited net working capital and its factor; the surety's program comes from its own underwriting of the firm's financials, work on hand, management and banking. A contractor can have TxDOT capacity that its surety does not match, or the reverse, so timing the annual audit, the CQ filing and the surety's renewal together typically gives the firm the clearest picture before it chooses which lettings to chase.