Incentivise carbon reduction with NEC’s new X29 clause

Incentivise carbon reduction with NEC’s new X29 clause

Give us your feedback

NEC has now released the new X29 secondary Option in consultation form. The new Option will be used to support, incentivise and tangibly demonstrate carbon reduction initiatives on future builds across the sector.

Achieving net-zero emissions and sustainable outcomes has usually been seen as a technical issue that can be addressed in the contract scope. Recently, there has been a growing view that standard contract conditions can be used to further support the reduction in the climate change impact of built assets.

NEC has developed a new secondary Option specifically to address the issue. The Option has been published in a consultative form initially, enabling users to comment on it, trial it and provide us with more detailed feedback.

There is a hope that the adoption of the new clause will enable tangible sustainability and net-zero commitments between clients and suppliers. The consultation on the X29 clause will close on the 13th May.

We are keen to hear feedback on the following:

  • Overall impression of the secondary Option
  • Provisions within the secondary Option which are welcomed and are considered to be best practice.
  • Provisions within the secondary Option which would be difficult to implement as they stand.
  • Further provisions which should be added to the secondary Option to support the global drive towards net-zero greenhouse gas emissions and sustainability.
  • Other comments on the draft secondary Option.

Click here to read the Guidance Document to accompany the new Option.

Ian Heaphy (NEC4 Project Board Member) and Stacey Collins (Pinsent Masons) will be discussing the new secondary Option at a webinar on the 6th April. There will be an overview of X29 along with an audience Q&A to enable attendees to understand how the Option is intended to operate in practice. Register for the webinar here.

Please fill out the form below, to access the new clause.

X29 Consultation Form

Recent Projects

Recent news

NEC annual conference in London attended by over 200 delegates

NEC annual conference in London attended by over 200 delegates

On 16 June 2025, over 200 industry professionals gathered at the historic One Great George Street in London for the NEC annual conference.

Read more
Martin Barnes 2025 Awards honour NEC projects, parties and people

Martin Barnes 2025 Awards honour NEC projects, parties and people

The 2025 Martin Barnes Awards were presented to exemplary projects, parties and individuals at the NEC annual conference on 16 June 2025.

Read more
How the Ministry of Justice is using NEC Contracts under a Framework Alliance Contract to deliver its new prisons programme.

How the Ministry of Justice is using NEC Contracts under a Framework Alliance Contract to deliver its new prisons programme.

The Ministry of Justice (MoJ) has embarked on an extensive programme of works to deliver 20,000 much needed prison places across the country.

Read more
View all news