Become an Assessor

What is a CS assessor?

A CS assessor is an individual who is recognised by the CS body to measure, reduce, and report the emissions of their clients as part of an internationally recognised carbon management process.

Why become a CS assessor?

Becoming a CS assessor offers you:

  • The opportunity to generate income with a world class carbon management service.
  • An accreditation process that is brief and informative.
  • Expert support from the CS body to answer questions and queries.
  • Access to well researched carbon emissions factors.
  • Access to the Climate Standard registry.
  • The ability to reward your clients for every step of the carbon management process, not just for becoming carbon neutral.
  • The opportunity to support, and be associated with, internationally accepted carbon management standards and practices.

What does a CS assessor do?

A CS assessor helps companies and individuals to understand, measure, reduce, offset and report their emissions as part of an internationally recognised carbon management process (Figure 1). An assessor:

  • Communicates the climate change problem to the client
    The evidence for man made climate change is growing. However, not everyone understands the evidence or the need to act.  A CS practitioner is mandated to educate his/her clients about the science of climate change, and required to make a multi faceted case for the need for businesses and individuals to change how they live and what they value.
  • Collects accurate information
    Every carbon footprint calculation is only as accurate as the information it rests on. The CS practitioner is responsible for obtaining accurate information pertaining to all aspects of the client's operations, including its operational and organisational boundaries.
  • Calculates an accurate carbon footprint
    The information the assessor collects underpins the carbon footprint calculation. The processes for doing this will be provided by the CS body so that the calculation is accurate, consistent and complete.
  • Oversees client carbon reductions
    Clients are required to make reductions to their footprint before offsets can be considered. The assessor is responsible for helping the client to plan and, where possible, to implement emissions reductions.
  • Offers internationally certified credits
    No client will be able to reduce their operational emissions to zero. The assessor must be able to offer clients a selection of internationally certified projects that allow carbon neutrality to be achieved. Where possible the chosen project should conform to the client's ideological and marketing goals.
  • Provides a carbon emissions report
    As part of the carbon footprinting service, the assessor is required to provide an emissions report that displays and explains the calculated operational emissions in an attractive, transparent and straightforward manner. Guidelines for doing this are available from the CS body and will be made available with the welcome pack.

Figure 1. The carbon management cycle.

Figure 1. The Carbon Management cycle.


How do I become a CS assessor?

There are three steps to the accreditation process:

  1. Agree to the CS terms and conditions
    The basis of the CS is a binding agreement governing code of conduct. You will be required to agree to follow the GHG protocol, use CS emissions factors, submit your reports for scrutiny to the central body and tabulate your clients' emissions with the CS registry. 
  2. Undergo training
    A two day training session is required to familiarise you with the carbon footprint process. The training and required background reading will introduce you to the GHG protocol and explain the requirements of a complete and accurate carbon footprint assessment. The final phase of training will consist of a proficiency test that you must pass to become a recognised assessor. 
  3. Receive the welcome pack and guidelines
    After completing the course and agreeing to the terms and conditions, you'll receive a welcome pack containing a copy of the GHG protocol, an explanation of how to access carbon emissions factors, and a guide to accessing and updating the carbon registry.

How do I find out more?

Contact the central CS body: