CHAS assessment criteria

CHAS Assessment Criteria (Explained for Contractors)

If you’re applying for CHAS, understanding the assessment criteria is key to passing the first time.

Quick Answer

• CHAS follows the same core criteria as all SSIP schemes
• You must show documented evidence, not just statements
• Most failures come from missing, outdated, or weak documents

CHAS sits under:

• SSIP (Safety Schemes in Procurement)

This means all SSIP schemes assess the same health & safety standards, reducing duplication across the construction industry.

Full CHAS Assessment Criteria

To achieve accreditation, your business is assessed against the following areas:

• Health & Safety Policy
• Arrangements (how safety is managed in practice)
• Occupational Health
• Behavioural Management
• Enforcement History
• Accident Reporting & Investigation
• Fleet Operations (if applicable)
• Competent Advice (corporate & construction)
• Drug & Alcohol Policy
• Training & Information
• Individual Qualifications & Experience
• Monitoring, Audit & Review
• Risk Assessments & Safe Systems of Work (RAMS)
• Workforce Involvement
• Cooperation & Coordination
• Welfare Provision
• Subcontractor Management
• Roles: Contractor / Principal Contractor / Designer

What CHAS Assessors Actually Look For

Here’s what matters in practice, not theory.

1. Health & Safety Policy

Your policy must:

• Be in the correct company name
• Be dated within the last 12 months
• Be signed by a director or a responsible person
• Clearly define roles and responsibilities

Learn more: How to structure your policy properly – How to Get CHAS Accreditation Step-by-Step

2. Arrangements (Your Safety Systems)

This is where many applications fail.

You must show working systems for:

• Accident reporting (including RIDDOR)
• Training and supervision
• Communication
• Risk assessments
• Monitoring and review
• Emergency procedures
• Asbestos awareness
• COVID-19 (where relevant)

Related guide: What Are Construction RAMS? A Simple Guide for UK Contractors

3. Occupational Health

You need evidence of:

• Awareness (toolbox talks, posters)
• Access to support for workers
• Training (e.g. mental health awareness)

4. Behavioural Management

CHAS expects:

• A documented behavioural safety approach
• Evidence that safe behaviours are promoted and monitored

5. Enforcement History

You must declare:

• Any HSE or Local Authority notices (last 5 years)
• Prosecutions (if any)
• Actions taken to prevent repeat issues

Important:
CHAS checks are independent, and non-disclosure can fail your application

6. Accident Reporting & Investigation

You need:

• A clear accident reporting procedure
• RIDDOR reporting systems
• 3 years of records, including:
  • Injuries
  • Dangerous occurrences
  • Occupational diseases
  • Incidents involving non-workers

Plus: evidence of corrective actions taken

Why Most CHAS Applications Fail

From experience, the biggest issues are:

• Outdated policies (over 12 months old)
• Missing RAMS
• No competent safety advisor
• Weak or generic documents
• No evidence (only statements)

Fix this early: Common Reasons CHAS Applications Fail (and How to Avoid Them)

How to Pass First Time

To succeed, your application must:

• Be complete
• Be current
• Be specific to your business
• Include clear supporting evidence

Simple Summary

CHAS is not about paperwork; it’s about proving your business can work safely.

Enforcement Actions

Details of any enforcement notices (Prohibition, Improvement or Crown) or prosecutions served on your company in the last five years by the HSE or Local Authority and the remedial actions taken to prevent a recurrence. A prosecution or notice will not debar the business from registration, but a failure to declare one could – please note that CHAS will check the HSE public register of convictions.

Accident Reporting and Investigation

Supporting Information:

• Documented arrangements for the recording, reporting, and reporting of accidents (Including RIDDOR reportable accidents).

• Records of all RIDDOR-reportable and other incidents for at least the last three years, including remedial actions to prevent a recurrence.
• Records of any other accidents within the last three years, including the remedial actions to prevent a recurrence. The accident statistics for the last three years, incorporating the following categories: Health & Safety Assessment Guidance v1.0 (website) 05/07/2023 Uncontrolled document when printed Page 3 of 13 Classification: PUBLIC. Chas assessment standards
• Deaths
• Specified Injuries
• Over 3 days incapacitated
• Over 7 days Incapacitated
• Injuries to non-workers
• Occupational Diseases
• Dangerous Occurrences
• Gas Incidents

Frequently Asked Questions

What are the CHAS assessment criteria?

The CHAS assessment criteria are the health and safety standards used to check whether a contractor has suitable policies, procedures and evidence in place. They cover areas such as health and safety policy, competent advice, training, RAMS, accident reporting, workforce involvement, welfare and subcontractor management. How to Get CHAS Accreditation Step-by-Step

Are CHAS assessment criteria the same as other SSIP schemes?

Yes. CHAS follows the SSIP core criteria, meaning it assesses contractors against the same recognised health and safety standards as other SSIP schemes. This helps reduce duplication when contractors are pre-qualified for work.

What documents are needed for a CHAS assessment?

Typical documents needed for a CHAS assessment include a health and safety policy, risk assessments, method statements, training records, insurance certificates, accident reporting procedures, competent advice details, monitoring records and evidence of workforce communication.

What should a CHAS health and safety policy include?

A CHAS health and safety policy should be in the correct company name, signed by a director or responsible person, dated within the last 12 months, and clearly explain health and safety responsibilities across the business.

What does CHAS check under accident reporting?

CHAS checks that the business has documented arrangements for recording, reporting and investigating accidents, including RIDDOR-reportable incidents. Contractors may also need to provide accident records and corrective actions for the previous three years.

Does CHAS check enforcement notices?

Yes. CHAS asks contractors to declare any HSE or Local Authority enforcement notices or prosecutions from the last five years. A notice does not automatically prevent accreditation, but failure to declare one may cause problems with the application

Why do CHAS applications fail?

CHAS applications often fail because documents are missing, outdated, generic or not specific to the business. Common issues include unsigned policies, inadequate advice, weak RAMS, missing training records, expired insurance, and poor accident reporting procedures. Common Reasons CHAS Applications Fail

Can someone complete my CHAS assessment for me?

Yes. Seguro is a CHAS accreditation consultant who can prepare the required documents, complete the online assessment, upload evidence and respond to assessor queries on behalf of your business. CHAS Accreditation Cost: Full Breakdown