Contract Signature

Contract signature is the formal act that converts the contract award decision into a legally binding agreement. It is deliberately separated from the award decision by the standstill period, giving unsuccessful bidders a protected window to challenge the outcome before the contract becomes irreversible. Understanding when and how a contract may be signed is important for both winning suppliers and unsuccessful competitors.

What is Contract Signature?

Under Directive 2014/24/EU and the Remedies Directive 2007/66/EC, contracting authorities in EU member states must not sign the contract until the standstill period (generally ten calendar days from electronic notification of the award decision) has expired. If a standstill challenge is brought during this period, an automatic suspension typically prevents signature until the court rules.

The contract itself is a formal legal instrument incorporating the terms agreed in the procurement documents, the winning tenderer's offer, any negotiated modifications permitted under the procedure type, and general conditions of contract. For large infrastructure or service contracts, the contract package may run to hundreds of pages and incorporate technical specifications, pricing schedules, and performance frameworks.

In the UK under the Procurement Act 2023, the same principle applies: a mandatory eight-working-day standstill period must pass before signature, extended to seventeen working days if notice is given by non-electronic means.

For framework agreements, the framework itself is signed at this stage. Individual call-off contracts are signed separately throughout the framework period and do not require their own standstill.

Why it matters for bidders

For the winning bidder, contract signature is the moment commercial risk begins. Mobilisation costs, staffing decisions, and supply chain commitments are typically made on the basis of the signed contract. Delays to signature caused by a standstill challenge can disrupt project timelines and create uncertainty for subcontractors and staff.

For unsuccessful bidders, the standstill period between the contract award decision and contract signature is the primary window for legal challenge. Once the contract is signed, the remedies available narrow significantly: courts are far less likely to set aside a signed contract, and remedies typically shift toward financial penalties for the contracting authority rather than re-running the competition.

Example

A Dutch municipality awards a cleaning services contract after an open procedure. It notifies all bidders on 1 March. The standstill period of ten calendar days ends on 11 March. No challenges are filed. The municipality and the winning supplier sign the contract on 14 March. The contract commencement date is set for 1 April, allowing the supplier time to mobilise.

Frequently Asked Questions

Can the contract be signed before the standstill period ends?

In principle, no. Signing before the standstill period expires is unlawful under EU procurement law, and contracts signed in breach of standstill obligations can be declared ineffective by a court, which is one of the most serious remedies available. In exceptional cases (urgency, single tenderer), some exemptions from standstill apply, but these are narrowly interpreted.

What happens if a legal challenge is filed during the standstill period?

An automatic suspension takes effect, preventing contract signature until the court determines whether to lift the suspension or grant an injunction. The contracting authority may apply to have the suspension lifted if the harm of delay outweighs the bidder's grounds of challenge.

Does an electronic signature have the same legal effect as a wet signature?

In most European jurisdictions, yes. The eIDAS Regulation (EU) 910/2014 establishes the legal equivalence of qualified electronic signatures with handwritten signatures across EU member states. Many contracting authorities now use e-signing platforms for contract execution.