The Contractors Health and Safety Assessment Scheme
Welcome to the Contractors Health and Safety Assessment Scheme (CHAS). We are dedicated to completing health and safety pre-qualification assessments to a nationally recognised and accepted threshold standard

CHAS has moved to annual assessments

With effect from 1st October 2012 CHAS, like the majority of other health and safety pre-qualification schemes, has moved to an annual assessment cycle. View details of how this will affect you>>

CHAS Accreditation

Accreditation is ONLY available for contractors or consultants who have been assessed as CHAS Compliant within the last 9 months.

Please note: accreditation only needs to be requested separately if an assessment was requested before 1st October 2012. After this date accreditation will automatically be issued for compliant assessments. If unsure, please read how do I know if I need to apply for accreditation?

  • The service costs £60 plus vat (In addition to the assessment fee
  • The Accreditation Certificate is valid for 12 months from the date you were last assessed as compliant
  • In order to maintain accreditation you will need to re-apply for a full-assessment and an accreditation pack on a yearly basis.

A CHAS compliant supplier meets acceptable standards of health and safety. (the threshold standard or core criteria). Our buyers can view which suppliers are compliant.

Accreditation goes beyond compliance. Accreditation provides:

  • Licensed use of our logos on your stationery and livery;
  • Certificate of Accreditation;
  • Verification of CHAS registration and history to non-CHAS buyers, potential clients and insurers;
  • Exemption from completing the Constructionline and other scheme H&S Questionnaires;
  • Access to information about your company on the CHAS database including CHAS status, registration details and assessment history;
  • Facility to view which CHAS buyers have viewed your details;
  • The potential for discounted public liability insurances and other insurances (see below).
  • Accreditation can take between 7 to 10 working days to administer and is valid for 12 months from the date you last achieved CHAS compliance (24 months for designers and CDM-Cs). If you then wish to renew your accreditation, you will need to reapply for a full-assessment and an accreditation pack on a yearly basis.

Reduced Insurance Premiums

Accredited contractors and consultants who achieve annual compliance through our scheme may be offered reduced liability (and other) insurance quotes as long as they maintain accreditation. We will write to accredited companies to advise them of this offer shortly after accreditation. More details>>

Apply for CHAS Accreditation

If you would like to apply for accreditation with us please complete the online Accreditation Request Form

Alternatively, download the application form in Microsoft Word format. Once completed please e-mail it to

If you want more information about accreditation please contact the CHAS administrator