UK Procurement Legislation: The Complete Guide
From PCR 2015 to the Procurement Act 2023 — a plain-English guide to how UK public procurement law has evolved and what it means for suppliers today.
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Why procurement law matters for suppliers
UK public procurement law sets the rules contracting authorities must follow when spending public money on goods, services, and works. As a supplier, you don't need to memorise every clause — but understanding the framework helps you know what to expect from a tender process, what rights you have when things go wrong, and why buyers behave the way they do.
The rules exist to promote competition, fairness, and value for money. In practice, that means buyers must advertise contracts above certain thresholds, follow defined procedures, treat all bidders equally, and explain their decisions. When they don't, suppliers have legal recourse.
Procurement law in the UK has gone through a major change. The Procurement Act 2023 came into force on 24 February 2025, replacing the patchwork of regulations that governed public contracts since 2015. If you're bidding for public contracts now, this is the legislation that applies.
Timeline of UK procurement legislation
2006
Public Contracts Regulations 2006
The first UK implementation of EU procurement directives. Applied to central government and most public bodies. Set the framework of thresholds, advertising, and award procedures that remained recognisable for two decades.
2015
Public Contracts Regulations 2015 (PCR 2015)
Replaced PCR 2006 to implement the 2014 EU Directives. Introduced the Most Economically Advantageous Tender (MEAT) principle, modernised the competitive dialogue procedure, and strengthened supplier remedies. PCR 2015 governed most UK procurement until February 2025.
2015
Utilities Contracts Regulations 2016 / Concession Contracts Regulations 2016
Separate instruments covering utility providers (water, energy, transport, postal services) and concession contracts respectively. These ran in parallel to PCR 2015.
2020
Procurement Policy Notes during COVID-19
The Cabinet Office issued a series of PPNs enabling faster, direct-award procurement for essential goods and services. These were temporary measures under existing regulations.
2023
Procurement Act 2023 — Enacted
The Procurement Act 2023 received Royal Assent on 26 October 2023. It consolidates and replaces PCR 2015, Utilities Contracts Regulations 2016, Concession Contracts Regulations 2016, and Defence and Security Public Contracts Regulations 2011 into a single statute.
2025
Procurement Act 2023 — In Force (24 February 2025)
The Act came into force on 24 February 2025. All new procurements above threshold started after this date must comply with the new framework. Contracts already in progress under PCR 2015 can be completed under the old rules.
The Procurement Act 2023: what changed
The Procurement Act 2023 is the biggest overhaul of UK public procurement law since the UK adopted EU directives. Here are the key changes that matter to suppliers.
Single framework replacing four sets of regulations
PCR 2015, the Utilities Contracts Regulations, the Concession Contracts Regulations, and the Defence and Security Regulations are all folded into the Procurement Act 2023. One statute, fewer inconsistencies.
Revised procurement procedures
The Act introduces new named procedures: the Open Procedure (unchanged), the Competitive Flexible Procedure (replacing the old restricted, competitive dialogue, competitive procedure with negotiation, and innovation partnership), and Direct Award for limited circumstances. The new Competitive Flexible Procedure gives contracting authorities more flexibility in how they structure multi-stage competitions.
Central debarment register
The Act creates a new mandatory debarment register maintained by the Cabinet Office. Suppliers convicted of certain offences or found to present an unacceptable risk must be excluded from public procurement nationally — not just for individual contracts.
Transparency improvements
Contracting authorities must publish a pipeline notice for contracts worth over £2 million. Award notices must be published within 30 days. Unsuccessful tenderers must receive better-quality feedback. The Act also introduces a new central digital platform (Find a Tender replacement).
Procurement Review Unit
A new Procurement Review Unit (PRU) within the Cabinet Office can investigate suspected breaches of the Act and make recommendations. It doesn't have powers to overturn contract awards, but its reports are public.
New thresholds
The Act maintains threshold-based application. Thresholds are reviewed every two years by the government. See our dedicated guide on UK Procurement Thresholds for the current figures.
SME and social value emphasis
Contracting authorities must 'have regard to' the desirability of SME participation. The Act also requires publication of KPIs for major contracts and payment performance metrics — aiming to improve cash flow through supply chains.
What the Procurement Act means for suppliers in practice
The headline change for most suppliers isn't dramatic — contracts are still advertised, you still bid, buyers still evaluate against stated criteria. But there are meaningful improvements to how information flows.
Pipeline noticesmean you'll know about large contracts coming to market earlier. The Competitive Flexible Procedure may mean some competitions look different — with more dialogue or iteration built in. Better debrief requirements mean you should get more useful feedback after an unsuccessful bid.
The central debarment register is both a risk and an opportunity. Convicted suppliers get excluded nationally — but it also means suppliers with clean records benefit from a more level playing field. You can check the register for competitors too.
The Procurement Review Unit won't overturn awards, but it provides a new escalation route short of legal action — useful if you believe a procurement was conducted improperly.
The bottom line for suppliers
Know the new procedure names. When a buyer runs a “Competitive Flexible Procedure,” read the procurement documents carefully — the stages and evaluation criteria will vary between buyers. And sign up for pipeline notices on the new central platform so you're never caught off guard by a contract you knew nothing about.
Frequently asked questions
When did the Procurement Act 2023 come into force?▼
Does the Procurement Act apply to all public contracts?▼
What replaced PCR 2015?▼
Are utilities still covered separately?▼
How does the Procurement Act affect suppliers?▼
What is a Procurement Policy Note (PPN)?▼
What is MEAT and does it still apply?▼
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