National Nuclear Laboratory


NNL is a Contracting Authority ( and as such follows the Public Contract Regulations 2015 (

NNL’s procurement team has three key objectives:

  1. Customer Service – we aim to make the buying process as smooth as possible while managing any risks. We also aim to ensure the business’s procurement needs are met efficiently and on time through effective planning, advice and collaboration with our supply chain.
  2. Compliance – we are the guardians of the Public Contract Regulations. We operate in a framework we call the Ten Golden Rules of Procurement (link)
  3. Best Value – in addition to price, we also consider risk and quality. We look to reduce our overall procurement costs by utilising framework contracts – ensuring an efficient process for NNL and our suppliers.

Click here to access the Procurement Pipeline.

No PO No Pay

From the 6th of June 2024 invoices received with no Purchase Order (PO) number referenced, will be returned to the supplier for it to be included.

Procurement Reform Act 2023

Please be aware: Public Procurement is changing. Learn about the changes and how they will impact you: The Official Transforming Public Procurement Knowledge Drops – Gov.UK (