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Become a CIBSE Low Carbon Consultant


Registrants on the CIBSE Low Carbon Consultants register have been certified by CIBSE to be competent to minimise energy use and carbon emissions from buildings both in design and operation.  The additional two day training programme has enabled them to go beyond the current legal minima in improving the energy performance of both new and existing buildings.  It is not a requirement for CIBSE certified Low Carbon Consultants to be members of CIBSE.

Search the Low Carbon Consultants Register here

What can a qualified Low Carbon Consultant (LCC) do?

A Low Carbon Consultant Design Specialist can:

  • Confirming Part L2A Compliance against all 5 compliance Criteria
  • Advise on energy efficiency and conservation.
  • Advise on and design low carbon and renewable technologies.
  • Use passive design technologies to make the best use of shade and natural ventilation.
  • Deliver the information needed to manage the building effectively and ensure that it continues to perform to its design intent after handover.

A Low Carbon Consultant Building Operation Specialist can:

  • Reduce a building's energy costs.
  • Suggest and implement cost effective energy efficiency improvements to an existing building.
  • Incorporate low carbon and renewable technologies.
  • Advise on how to develop a corporate social responsibility agenda.

A Low Carbon Consultant Simulation Specialist can:

  • Ensure accurate and complete carbon emissions calculations for compliance with Criterion 1 ADL2A.
  • Provide the calculations necessary for developing an Energy Performance Certificate.

A Low Carbon Consultant Energy Management Systems Specialist (EnMS) can:

  • Plan and implement an energy management system to BS EN ISO 50001
  • Help implement Energy Management Systems to BS EN ISO 50001
  • Help Improve energy performance in a systematic way


 Become a CIBSE Low Carbon Consultant

There are no formal entry requirements to the examination, but it is advised that you familiarise yourself with the level of knowledge expected beforehand and take appropriate training.

  • To join the CIBSE Low Carbon Consultants (Design) Register you must first pass an examination in the theory and practice of designing buildings for optimal energy performance. More information can be found on the CIBSE Training website
  • To join the CIBSE Low Carbon Consultants (Building Operation) Register you must first pass an examination in the theory and practice of operating buildings. More information can be found on the CIBSE Training website
  • To join the CIBSE Low Carbon Consultants (Simulation) Register

To gain membership of the Simulation Register, evaluation will be either by examination after the course or continual evaluation during the course; specific arrangements differ between training and examination providers. Once the completed evaluation has been marked you will be notified of your mark and also whether you have passed or failed. Certificates will be issued by the training and examination partners to successful candidates. For details of organisations offering current training and examinations click here.

These companies also offer training to those individuals that wish to improve their knowledge prior to taking the examination. Please contact them directly for information on training and examination dates and fees.

  • To join the CIBSE Low Carbon Consultants (EnMS) Register you must first pass an examination in the theory and practice of the implementation of ISO 50001. More information can be found on the CIBSE Training website. There are a number of other providers of this sort of training which may also be useful preparation.  If others courses include assessment, we may be able to approve that assessment as meeting the requirements for our register. Please contact us if you would like us to consider an assessment that you have passed at

 The list identified to date is as follows:

  • BSI 5 day ISO 50001 Energy Management System Lead Auditor Course
  • Any IRCA Certified ISO 50001 Energy Management System Course with a minimum of three days of attendance

Successful completion of any of these courses supported by a certificate will satisfy our assessment requirements for admission to the LCC (EnMS) Register.


Apply to become a CIBSE Low Carbon Consultant

Once you have passed the exam for the strand(s) of your choice you can apply to become a CIBSE LCC by completing the application form and submitting any supporting documentation.

1 - Download the LCC Application pack - complete the application form and sign the CIBSE Code of Conduct

2 - Submit a digital photo of yourself saved as JPEG (taken against a white background where possible) for your ID card.

3 - Submit a copy of your Professional Indemnity Insurance Certificate

4 - Pay your registration fee

Please email completed applications and supporting documentation to or contact a member of the Certification team for further information on 020 8772 3649.

Renewal of Registration

Registration will be renewed annually. In order to re-register you will need to have undertaken CPD to increase your low carbon skills, for further information on reewing your registration please click here.

To find out more about the key benefits of becoming a LCC click here

If you have a query about any aspect of the Low Carbon Consultants Register email the Certification department or contact us directly on 0208 772 3649.

About Low Carbon Energy Assessors

Many Low Carbon Consultants (LCCs) also become a certified Low Carbon Energy Assessors (LCEAs) in order to provide the Energy Performance Certificates (EPCs) and Display Energy Certificates (DECs) which have been introduced under the Energy Performance in Buildings Regulations (EPBD Regulations) since 6 April 2008.  These certificates can only be provided by certified energy assessors who are members of an approved scheme one of which is the Low Carbon Energy Assessors Register.  Please refer to the Become a CIBSE certified LCEA sections for more information.

About ESOS Lead Assessors

In 2015 CIBSE Certification were approved to operate an ESOS Lead Assessor register in support of the ESOS Regulations.  ESOS reports identifying the total energy use and energy savings opportunities for large organisations must be signed off by a registered ESOS Lead Assessor.  You need to be an LCC to become an ESOS Lead Assessor. Please refer to the Become a CIBSE ESOS Lead Assessor section for more information.