Search

How can we help?

Icon

Public procurement: the mandatory standstill period

Those involved in public tenders will be familiar with the requirement that a mandatory ten day “standstill period” must follow all contract awards, during which the contracting authority is not allowed to enter into a contract with the successful bidder.

The purpose of the standstill period is to enable unsuccessful bidders to review and digest the award notification letter and any other debrief materials provided by the contracting authority, and determine whether they have any grounds on which to challenge the outcome of the tender.

If an unsuccessful bidder issues court proceedings within the ten day standstill period, an automatic suspension comes into place which prevents the contracting authority from entering into the contract until the claim is concluded or the earlier lifting of the suspension by the Court.

However, the Public Contracts Regulations 2015 provide that there is an overall limitation period for procurement challenges of 30 days, which runs from the date on which the unsuccessful bidder knew there had been a breach of the Regulations.

In the recent Court of Appeal case of Energy Solutions EU Ltd v Nuclear Decommissioning Authority (which was in fact brought under the now-superseded Public Contracts Regulations 2006, but the provisions relating to standstill and limitation are the same in both sets of Regulations), the NDA sought to argue that a bidder whose challenge was brought within the 30 day limitation period provided for by the Regulations, but after the expiry of the ten day standstill period, should not be permitted to recover damages.

The crux of NDA’s position was that if bidders do not issue proceedings within the standstill period, but wait until after the contracting authority has entered into the contract, they put the contracting authority at risk of having to pay both the successful bidder for performing the contract, and damages to the unsuccessful bidder if the claim is successful.  Unsuccessful bidders should, NDA said, be obliged to mitigate their losses by issuing proceedings within the standstill period, so as to ensure that the automatic suspension comes into place.

However, the Public Contracts Regulations 2015 provide that there is an overall limitation period for procurement challenges of 30 days, which runs from the date on which the unsuccessful bidder knew there had been a breach of the Regulations.

The Court did not accept NDA’s arguments. The High Court judge who initially heard NDA’s application stated that it is “an inevitable consequence that authorities who do not comply with the rules are at risk of being penalised … for better or worse this is now a feature of the procurement law landscape.

The Court of Appeal agreed, noting that there is nothing in the Regulations to suggest that a bidder should be deprived of damages simply because they have failed to invoke a potential remedy.  Taking advantage of the automatic suspension is an option for unsuccessful bidders, but it is not mandatory and is not a pre-condition to the availability of damages.

Given that the Regulations already impose a very short deadline of 30 days for bringing legal action, it is good news for bidders (who may not always wish to prevent the contract from being concluded with another bidder, if they are satisfied with the remedy of damages) that NDA’s attempt to shorten it even further was not upheld.

Nonetheless, an unsuccessful bidder who suspects that the public authority may not have followed proper processes should always take urgent legal advice before the standstill period expires to ensure that its position is protected.  Meanwhile, contracting authorities who are concerned about the financial risk of damages claims brought after the expiry of the standstill period may wish to consider delaying entering into the contract until the 30 day limitation period has also expired.

Disclaimer

This information is for guidance purposes only and should not be regarded as a substitute for taking legal advice. Please refer to the full General Notices on our website.

Author profile

About this article

Read, listen and watch our latest insights

Pub
  • 07 May 2026
  • Employment

Employment Rights Act 2025: Key Changes for Employers

Join Katie Glendinning and Lucy White for a live webinar as they break down the key changes introduced by the Employment Rights Act 2025, offering clear insights into what these reforms mean in practice for employers and HR professionals.

art
  • 07 May 2026
  • Public Procurement

What the First Procurement Act 2023 Judgment Means for Automatic Suspension

It has been more than a year since the Procurement Act 2023 (PA23) came into force in February 2025, and the long wait for the first High Court judgment on the Act to be published is finally over.

art
  • 06 May 2026
  • Corporate and M&A

Community Interest Companies – What do you need to know?

This article seeks to provide an overview of the CIC structure’s key characteristics, the types of enterprises it suits, and some practical tips on the application process.

art
  • 06 May 2026
  • Privacy and Data Protection

Use of Personal Devices at Work: Why a Bring Your Own Device Policy is Essential

If you have employees who bring their own devices into the workplace and use said devices to deal with company data, you may want to consider a Bring Your Own Device (“BYOD”) policy.

art
  • 29 April 2026
  • Privacy and Data Protection

UK Data Protection – what’s new?

Having come into force on 19 June 2025, it comes as no surprise that we are now seeing the effects of the Data (Use and Access) Act 2025 (‘DUAA’). This article highlights a few of DUAA’s fundamental reforms, delves into one in particular, and examines how this will impact the recruitment sphere.

art
  • 29 April 2026
  • Employment

Employment Rights Act: Changing key contract terms will be harder from January 2027

The Employment Rights Act 2025 (“ERA 2025”) introduces a new regime that restricts how employers can change certain core contractual terms, with the key provisions now expected to commence on 1 January 2027.