Insights
What VOB/A mandates for construction tenders: An overview of procurement types, deadlines, and suitability criteria in Section 1 for national procedures.
Tom Dietrich
Founding GTM Engineer
Key Takeaways
VOB/A regulates the procurement of construction services and distinguishes between national and Europe-wide procedures.
Section 1 of VOB/A defines the requirements for national construction tenders below the thresholds.
Public tenders are the standard; restricted procurement procedures require specific justifications.
Suitability criteria such as technical expertise, capacity, and reliability must be strictly proven.
Introduction
The annual order volume of contracting authorities in Germany amounts to 500 billion euros (Source: Public Tenders Are Germany's Next Growth Engine). For you as a construction company, this means: Whoever masters the formal rules secures a lucrative sales channel. VOB/A (Vergabe- und Vertragsordnung für Bauleistungen, Teil A) is the central set of rules for the award of public construction contracts in Germany. It defines bindingly for bidders which deadlines apply, how proof of suitability must be provided, and according to which criteria the award is made.
According to the Act against Restraints of Competition (GWB), all procedures must meet strict transparency requirements starting January 1, 2026. When you prepare a bid for a public construction project, precise knowledge of these regulations is essential. A single missing document or an incorrectly calculated deadline inevitably leads to exclusion from the competition, regardless of how economically your price is calculated. This guide shows you how to systematically implement the requirements in your bid management.
Contents
What does the Vergabe- und Vertragsordnung für Bauleistungen Teil A regulate?
Which central requirements of VOB Teil A shape the procurement process?
How do national construction tenders work according to procurement procedure Section 1 VOB/A?
Checklist: VOB/A-Compliant Bid Creation for Construction Companies
How ForgentAI Steps In
Frequently Asked Questions about VOB/A
What does the Vergabe- und Vertragsordnung für Bauleistungen Teil A regulate?
The Vergabe- und Vertragsordnung für Bauleistungen Teil A is divided into three main sections that directly determine your scope of action as a bidder. Depending on the estimated contract value, the procurement office applies different paragraphs. For you, this means: You must immediately recognize which section you are operating in to prepare the correct suitability documents and block the correct deadlines in your calendar.
Section of VOB/A | Scope of Application | Meaning for You as a Bidder |
|---|---|---|
Section 1 | National procurements below the EU thresholds (e.g., EUR 5.538 million for construction services 2024/2025) | Shorter deadlines, often regional focus, communication sometimes still in text form. |
Section 2 | EU-wide procurements above the thresholds | Strict requirements according to VgV, Europe-wide competition, mandatory electronic communication. |
Section 3 | Sector contracting authorities (e.g., energy, water, transport) | Specific flexibility in the choice of procedure, deviating deadline regulations. |
Tip: For every new tender, first check the estimated contract value. If it is below the current EU threshold of 5,538,000 euros (as of 2024/2025, Source: European Commission), Section 1 strictly applies.
The structure of the regulation forces contracting authorities to adopt a transparent approach. If the procurement office wants to deviate from the public tender, for example, it must justify this in detail according to § 3 VOB/A. For your sales team, this documentation obligation means that you can legally challenge the authority's decisions if necessary. Correct classification determines your formal admission.
Which central requirements of VOB Teil A shape the procurement process?
To successfully participate in public procurement as a construction company, you must integrate the core mechanisms of VOB Teil A into your internal processes. The following three steps form the foundation for every legally compliant bid.
1. Identify the choice of procurement type
The contracting authority determines at the beginning how the competition will be conducted. According to § 3 VOB/A, the public tender is the absolute standard. Here, the authority publicly invites an unrestricted number of companies to submit bids. For you as a bidder, this is the easiest way to win new customers in the public sector, as you can apply proactively.
Exceptions include the restricted procurement procedure and the negotiated procedure without prior publication. In a restricted procurement procedure according to § 3a VOB/A, the contracting authority only invites a selected group of companies. To be considered here, you must pre-qualify with the relevant procurement offices in advance. Actively build contact with procurement agencies and deposit your company profiles in the regional bidder databases. Only those on the authorities' radar receive lucrative direct invitations.
2. Systematically prove suitability criteria
The procurement office may only award the contract to expert, capable, and reliable companies. § 6 VOB/A defines exactly which proofs the contracting authority may request. These usually include the revenue of the last three financial years, references for comparable construction services, and clearance certificates from social security funds and the tax office.
This is where the technological shift in bid management becomes apparent. While generic AI like ChatGPT often fails at legal nuances when checking complex suitability requirements, domain-specific AI extracts all required proofs flawlessly from the tender documents. The AI analyzes the suitability criteria according to § 6 VOB/A and matches them with your internal reference database. The Bid Manager then decides based on this preliminary work whether the company will submit a bid. Prepare a standardized suitability portfolio that you update quarterly to be immediately operational when deadlines are short.
3. Calculate and meet deadlines
Procurement law knows no leniency. § 10 VOB/A regulates the deadlines for bid submission and the binding period. The bid deadline must be sufficiently measured to allow for serious calculation. In national procedures, it is often only 10 to 14 days. The binding period defines the timeframe during which you are bound to your submitted bid and the calculated prices—usually 30 to 60 days.
Warning: Calculate material price fluctuations for the entire duration of the binding period. If the award is made on the last day of the deadline, you must build at the prices calculated two months ago.
Set up strict deadline management. Enter not only the submission date but also the deadline for bidder questions into your calendar. If you notice ambiguities in the specification, you must file a formal complaint well before the question deadline expires. A missed deadline leads to immediate exclusion.
How do national construction tenders work according to procurement procedure Section 1 VOB/A?
The majority of everyday construction contracts for medium-sized businesses fall under the procurement procedure Section 1 VOB/A. These national procedures are characterized by more pragmatic approaches but require the same formal strictness in bid creation.
1. Systematically monitor notices
National tenders are not published in the European Official Journal (TED Europe), but on bund.de, the state procurement portals, or in regional daily newspapers. For your sales team, this means considerable search effort across fragmented platforms. Set up automated search profiles with your relevant CPV (Common Procurement Vocabulary) codes.
As the HR service provider YER shows, automated screening can accelerate bid decisions by 87.5 percent (Source: How YER Accelerates Bid Decisions by 90% with Forgent). Applied to construction companies, this means: The faster you identify a relevant tender under Section 1, the more time your estimators have for pricing.
2. Check tender documents for completeness
As soon as you have downloaded the documents, check them for completeness according to § 8 VOB/A. The contracting authority must describe the service clearly and exhaustively. The specification is the core of the tender. Check whether all items are clearly defined and no unusual risks are passed on to you as the contractor.
If you find contradictions between the preliminary remarks and the individual service items, immediately submit a bidder question via the respective procurement portal. The procurement office's answers are made available to all bidders anonymously and become a legally binding part of the tender documents.
3. Submit the bid in due form
The formal requirements according to § 13 VOB/A are the most common source of error. Meanwhile, electronic bid submission is also the standard for national procedures. Pay meticulous attention to which signature level is required: Is the simple text form (typing the name) sufficient, is an advanced electronic signature required, or is a qualified electronic signature (with signature card and reader) strictly mandatory?
Never upload your bid at the last minute. Technical problems on the part of the procurement portal or with your internet connection are at your expense in case of doubt. Plan the upload at least 24 hours before the deadline. National procurement law never forgives formal errors.
Checklist: VOB/A-Compliant Bid Creation for Construction Companies
Use this checklist to ensure your bid meets the formal requirements before every upload.
Procurement type identified according to § 3 VOB/A and internal resources blocked accordingly.
Estimated contract value compared with the EU threshold of 5,538,000 euros.
All required proofs of suitability according to § 6 VOB/A (revenue, references, certificates) fully compiled.
Specification checked for contradictions according to § 8 VOB/A and bidder questions submitted on time.
Bid deadline and binding period recorded in the system according to § 10 VOB/A and factored into the price calculation.
Required electronic signature level verified according to § 13 VOB/A and certificates checked for validity.
Bid package uploaded to the procurement portal at least 24 hours before the submission deadline expires.
Check your standard references for currency before the next procedure.
How ForgentAI Steps In
The manual review of construction tenders according to VOB/A costs valuable hours and ties up specialists. As a domain-specific AI platform for tenders, ForgentAI enables the process end-to-end: Find, evaluate, apply, and manage. The system analyzes tenders with over 10,000 pages and 50 files in under five minutes. You still make the final decision on bid submission. In a short demo, you can see how ForgentAI handles this for your next tender: Request a demo →.
Frequently Asked Questions about VOB/A
When is VOB/A strictly mandatory?
VOB/A is mandatory for contracting authorities when awarding construction services. For you as a bidder, this means you can rely on standardized processes according to § 1 VOB/A. From a contract value of 5,538,000 euros (as of 2024/2025), Section 2 strictly applies for Europe-wide procedures.
What is the difference between VOB/A and VOB/B?
VOB/A regulates the procedure up to the contract award. VOB/B defines the General Conditions of Contract for the subsequent execution of the construction service. As a bidder, you must primarily observe VOB/A during the bidding phase, while VOB/B becomes relevant for later construction management and billing.
Can missing documents be submitted later?
According to § 16a VOB/A, the contracting authority generally requests missing declarations or proofs later. However, as a bidder, do not rely on this. An incomplete submission delays the process and carries the risk of formal exclusion if the late submission deadline of usually six days expires.
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