If you are a contractor or business owner in the UK, three letters come up again and again: CHAS.
Clients ask for it. Tender forms require it. Procurement teams check for it before they even look at your pricing. And if you do not have it, you are often ruled out before the conversation has started.
CHAS is one of the most recognised health and safety accreditations in the UK. Clients use it to check that you are safe, compliant, and ready to work. Without it, many procurement teams will not even consider your application.
But what exactly is CHAS accreditation? What do you need to get it? How do you apply? And which level is right for your business?
This guide answers every question clearly, in plain English, with no jargon. Whether you are applying for the first time or upgrading to a higher level, this is your complete reference.
At BizGrow Holdings, we help UK contractors get CHAS accredited every day. Let us walk you through everything.
What Is CHAS? (CHAS Meaning Explained)
CHAS stands for Contractors Health and Safety Assessment Scheme. It was created in 1997 by health and safety professionals to improve safety standards across the UK supply chain. It is a third-party accreditation, and an independent assessor reviews your health and safety systems, policies, and records and confirms whether you meet the required standard.
In simple terms: CHAS is proof. It tells clients that an independent body has checked your business and confirmed you meet recognised health and safety standards.
CHAS accreditation demonstrates to potential clients that you meet industry standards, helping you win more contracts and streamline tendering processes.
1,000+ public and private sector bodies recognise CHAS and have over 75,000 members across the UK. That is a significant network, and being part of it puts your business in front of clients who actively search for CHAS-approved contractors.
What Does CHAS Stand For?
CHAS stands for Contractors Health and Safety Assessment Scheme.
You will also see it referred to as:
- CHAS accreditation: the formal status of being an approved contractor
- CHAS certification: the certificate you receive on passing the assessment
- CHAS certificate: the document that proves your approved status
- CHAS membership: your ongoing relationship with the scheme
- CHAS registration: the process of joining and applying
All of these terms refer to the same thing. When a client or tender asks for CHAS, they want to see a valid, current CHAS certificate from an approved contractor listed on the CHAS register.
The scheme is managed by CHAS Ltd, and their official portal is at chas.co.uk. Everything from your application to your certificate management happens through that portal.
What Is a CHAS Certificate of Accreditation?
A CHAS certificate of accreditation is the formal document your business receives when it passes the CHAS assessment.
It confirms that your business:
- Has been independently assessed by a CHAS assessor
- Meets the required health and safety standards for your sector
- Holds valid insurance documentation
- Has appropriate policies, procedures, and records in place
- Is listed on the CHAS contractor portal, visible to clients across the UK
The certificate is valid for 12 months. When your certificate is current, clients can verify your status directly through the CHAS portal. You can also display the CHAS logo on your website, vehicles, and marketing materials.
Losing your CHAS certificate through lapse or cancellation means you lose your listed status on the portal immediately. Clients searching for approved contractors will not find you. That is a real commercial risk, especially mid-contract or mid-tender.
Is CHAS an SSIP Accreditation?
Yes. CHAS is a founding member of SSIP Safety Schemes in Procurement. When you get CHAS Standard or Advanced accreditation, you also receive SSIP accreditation. That means you can use your CHAS certificate to satisfy the SSIP requirements of many other clients, too. This is known as “deemed to satisfy”; it avoids you having to apply to multiple schemes separately.
SSIP is an umbrella organisation endorsed by the Health and Safety Executive (HSE). All SSIP member schemes assess contractors against the same 15 core criteria. Because CHAS is part of SSIP, your CHAS certificate is recognised by other SSIP schemes, including SafeContractor, SMAS, and Constructionline, through the Deem to Satisfy process.
In practice, this is a significant time and money saver. One CHAS assessment is accepted across a wide network of SSIP-accepting clients and schemes. CHAS is widely considered the UK’s most trusted and popular SSIP scheme.
Who Needs CHAS Accreditation in the UK?
CHAS accreditation is relevant to any UK contractor or business that supplies services to clients who require health and safety pre-qualification.
It is essential if you work in:
- Construction and building trades
- Facilities management and maintenance
- Security services
- Cleaning and specialist services
- Electrical, mechanical, and plumbing trades
- Landscaping and groundworks
- Roofing and specialist contractors
- Healthcare and social care environments
- Education and public sector sites
- Housing associations and local authority supply chains
The key question is simple: do your current or target clients ask for proof of health and safety accreditation before letting you work for them or tender for their contracts? If yes, CHAS is for you.
Since June 2024, CHAS Elite (Common Assessment Standard) is now required by UK public sector bodies when pre-qualifying contractors for works contracts, in line with government Procurement Policy Note (PPN) 03/24.
This makes CHAS Elite effectively mandatory for any business targeting public sector works contracts in 2026. For smaller businesses and those targeting private sector work, the CHAS Standard or Advanced are typically an appropriate starting point.
CHAS Accreditation Requirements | What Do You Need?
This is the section that most applicants need the most. Before you apply, you must have the right documents in place. Here are the minimum requirements for a CHAS application.
Health and Safety Policy
You need a signed, up-to-date Health and Safety Policy.
This must be signed by the most senior person in your business, typically the director or owner. It must be relevant to your actual operations and reviewed at least annually.
A generic, downloaded policy will not pass. The policy must reflect your real work activities, the hazards you face, how you manage them, and who is responsible. CHAS assessors check that your policy matches the work you actually do.
Risk Assessments and Method Statements
You need RAMS Risk Assessments and Method Statements relevant to your trade.
Generic RAMS are a common reason for rejection. Your assessments must identify the actual hazards involved in your specific work activities, assess the risk level, and describe the controls you have in place.
If you carry out multiple types of work, you need separate RAMS for each significant activity. One generic document that vaguely covers everything is not sufficient and will not pass the CHAS assessment.
Insurance Requirements
You need valid insurance documents.
This means the current Employer’s Liability Insurance and Public Liability Insurance. Both must be in date; expired certificates are an automatic failure.
Make sure your insurance certificates clearly show your company name, the level of cover, and the expiry date. If renewal is due shortly, renew before you submit your CHAS application.
Training and Competence Records
You need training records for your workforce.
This includes trade-specific qualifications, CSCS cards, IPAF, PASMA, electrical registration, gas safe certification, and anything else relevant to your activities, as well as general health and safety training records, induction records, and evidence of ongoing training.
The standard is evidence. Saying your staff are trained is not enough. You need to show certificates, records, and documented proof.
Accident and Incident History
You need a first aid and accident reporting procedure.
CHAS assessors want to see a functioning system for recording accidents, near misses, and incidents. Three years of accident history is typically required. Having no accidents is positive, but you still need to demonstrate that the recording system exists and is actively used.
Additional Documents for Higher Risk Work
You may also need COSHH assessments if you use hazardous substances, and evidence of supervision and competence across your organisation.
For CHAS Advanced and CHAS Elite, additional documents are required:
- An Environmental Policy
- A Quality Management System or documented quality procedures
- Equality, diversity, and inclusion policy
- Anti-bribery and modern slavery statements
- Evidence of financial standing
- Subcontractor management processes
CHAS Levels of Accreditation Explained
CHAS offers three levels of accreditation. Choosing the right one matters; pick too low, and you will not satisfy your clients’ requirements. Pick too high before you are ready, and you may face gaps in your documentation.
CHAS Standard
The entry-level option. It covers health and safety assessment plus SSIP accreditation.
CHAS Standard is the right starting point for most smaller contractors, sole traders, and businesses tendering for private sector work that requires SSIP as a minimum. It covers your core health and safety compliance policy, RAMS, insurance, training, and accident records.
Even at this level, CHAS Standard gives you SSIP recognition, access to the CHAS contractor portal, and the ability to satisfy the health and safety pre-qualification requirements of over 1,000 UK organisations.
CHAS Advanced
CHAS Advanced builds on Standard and also covers PAS 91 requirements. You need to demonstrate compliance in nine areas of risk management, including health and safety, equality and diversity, and environmental management.
CHAS Advanced is appropriate for businesses tendering for mid-to-large contracts where clients require a broader pre-qualification questionnaire beyond core health and safety. It gives you access to over 2,500 CHAS clients, significantly more than Standard.
Choose CHAS Advanced if your clients require PAS 91 or a broader pre-qualification questionnaire.
CHAS Elite (Common Assessment Standard)
CHAS Elite is the highest level. It includes everything from Standard and Advanced, plus the Common Assessment Standard (CAS). You need to show compliance in 13 risk management areas.
The Common Assessment Standard was developed by Build UK, CECA, and other major construction industry bodies. It is the UK construction industry’s leading pre-qualification framework and is recognised by major main contractors, public sector bodies, and framework operators across the country.
The CHAS Elite level includes the SSIP and PAS91 requirements, plus the Common Assessment Standard. This is the most comprehensive accreditation, covering 13 areas of risk management.
Choose CHAS Elite if you are targeting public sector contracts or large private sector frameworks.
CHAS Premium Plus
CHAS Premium Plus is an enhanced membership tier that sits alongside the accreditation levels. It offers additional member benefits, including expanded portal visibility, additional compliance modules, and access to broader compliance management tools.
What was previously referred to as CHAS Premium or CHAS Premium Plus now broadly corresponds to CHAS Advanced and CHAS Elite in the current product range. If you see this term in older documentation, it refers to the higher tiers of the current CHAS product range.
How to Apply for CHAS | Step by Step
Here is the process for applying for CHAS accreditation.
Step 1 | Choose Your CHAS Level
Decide which level is right for your business before you start. Think about what your current and target clients require. Check recent tender documents. If you are unsure, BizGrow Holdings can review your contract pipeline and advise which level gives you the strongest return.
Step 2 | Register on the CHAS Portal
Go to chas.co.uk and create an account. Enter your company details, business name, trade categories, number of employees, and nature of your work. Your application and all document submissions are managed through this portal.
Step 3 | Complete Your CHAS Application
You will complete an online questionnaire about your health and safety practices. Upload the required evidence through the online portal. You can do this at your own pace.
Work through the questionnaire carefully. Answer each section accurately and upload supporting documents that clearly correspond to your answers. Well-organised, clearly labelled documentation helps the assessor review your application faster.
Step 4 | CHAS Assessment and Review
A CHAS assessor will review your submission. They may come back with questions or requests for extra information.
If the assessor raises a query, respond promptly and accurately. Delays in responding to assessor queries are one of the most common reasons applications take longer than expected. Have your documents ready and your responsible person available to respond quickly.
Step 5 | Receive Your CHAS Certificate
Once approved, you receive your CHAS accreditation certificate. This is valid for 12 months and must be renewed annually.
You have been added to the CHAS contractor portal, visible to clients across the UK. You can display the CHAS logo on your website, marketing materials, tenders, and vehicles.
CHAS Assessment Standards and Criteria
The CHAS assessment criteria are based on the SSIP Core Criteria, which are endorsed by the Health and Safety Executive.
These cover:
- Health and safety policy and management
- Risk assessments and method statements
- Competence and training of staff and management
- Employers’ Liability and Public Liability insurance
- Monitoring of health and safety performance
- Accident and incident reporting and investigation
- Health surveillance and welfare provision
- Subcontractor selection and management
- Consulting and communicating with workers
- Safe systems of work and emergency procedures
CHAS Standard focuses on core health and safety compliance. CHAS Advanced includes broader checks, including environmental, quality, and financial information & CHAS Elite is aligned with the Common Assessment Standard and is the most comprehensive level.
Every piece of evidence you upload must align with your questionnaire answers. Inconsistency between what you say and what your documents show is a common reason for assessor queries and delays.
CHAS Deem to Satisfy | What Is It?
CHAS Deem to Satisfy (DTS) is the process that allows you to use your existing SSIP accreditation from another scheme to satisfy the SSIP health and safety requirements of CHAS, without completing a full separate assessment.
When you get CHAS Standard or Advanced accreditation, you also receive SSIP accreditation. This is known as “deemed to satisfy”; it avoids you having to apply to multiple schemes separately. In practice, this saves contractors time and money. One assessment, one fee, and you are recognised across a wide network of SSIP-accepting clients.
The reverse also works. If you already hold a valid SSIP certificate from SafeContractor, SMAS, or another member scheme, you can apply to CHAS via the DTS route. This means the core H&S criteria are pre-satisfied, and your investment for CHAS is significantly lower.
The DTS route still requires you to submit the CHAS application and upload relevant documentation, but the health and safety assessment portion is recognised from your existing accreditation. This is a smart option for businesses that already hold one SSIP accreditation and want to expand their reach.
CHAS Benefits for UK Contractors
Why make the investment in CHAS accreditation? Here are the real, practical benefits:
- Win more contracts: CHAS connects you to a network of 2,500+ hiring clients. Many procurement teams only consider CHAS-approved businesses at the shortlisting stage.
- Replace multiple PQQs: instead of completing lengthy health and safety questionnaires for every new client, CHAS accreditation is accepted as pre-qualification evidence by over 1,000 UK organisations.
- Build instant credibility: displaying the CHAS badge signals professionalism and compliance before a client has even spoken to you.
- SSIP mutual recognition: one CHAS certificate accepted across multiple SSIP-accepting clients and schemes
- Public sector access: CHAS Elite satisfies the government’s PPN 03/24 requirement for public sector pre-qualification
- Improve internal H&S: the accreditation process strengthens your documentation and safety culture.
- Insurance benefits: many commercial insurers view CHAS accreditation favourably when assessing your risk profile
- Staff confidence: your team knows you take safety seriously, supporting recruitment and retention
How Much Does CHAS Cost in the UK?
The investment in CHAS accreditation varies depending on the level you choose and the size of your business. Fees are structured by the number of employees, so smaller businesses pay proportionately less than larger ones.
Rather than list specific fees that change, we recommend visiting chas.co.uk for the current fee schedule or speaking to the team at BizGrow Holdings, who can advise you on the most appropriate level and help you understand the full picture before you commit.
What we can say clearly: for the vast majority of UK contractors, the return on investment from a single new contract won through CHAS far outweighs the annual accreditation fee. Many clients will not consider non-CHAS businesses, so the investment is commercial as much as it is compliance-focused.
CHAS Renewal | How to Keep Your Accreditation
Once you have your CHAS accreditation, this will last you 12 months and will need to be renewed each year.
The renewal process follows the same steps as your initial application, but it is faster because your company details are already on file.
Key renewal tips:
- Start your renewal at least 6 weeks before your certificate expires
- Update your Health and Safety Policy annually; do not wait until renewal to review it
- Keep training records and accident logs maintained throughout the year
- Ensure your insurance certificates are renewed and current before submitting
- Update your RAMS if your work activities have changed
The most common cause of renewal delays is leaving it too late. If your certificate lapses, you lose your accredited status. That can block you from active contracts or tender submissions.
Treat your CHAS renewal date as a fixed diary commitment, not something to sort out when someone asks.
How to Check CHAS Accreditation
Clients and procurement teams can verify a contractor’s CHAS status directly through the CHAS contractor portal at chas.co.uk.
If you are a contractor, you can verify your own status and view your certificate expiry date through your My CHAS account on the portal.
If you are a client, searching the CHAS database gives you:
- Confirmation of whether a contractor is currently CHAS accredited
- The level of their accreditation: Standard, Advanced, or Elite
- The expiry date of their current certificate
- The trade categories covered by their accreditation
This transparency is one of CHAS’s key strengths. Clients can verify status instantly, with no delay, no ambiguity.
How BizGrow Holdings Helps You Get CHAS Accredited
You can use an accreditation support company like BizGrow Holdings to help you prepare your documents and complete the application correctly the first time. This reduces delays and makes the process much less stressful.
At BizGrow Holdings (bizgrow-holdings.com), we provide end-to-end CHAS accreditation support for UK contractors and businesses. We know exactly what CHAS assessors look for, and we make sure your application is complete, accurate, and ready to pass before you submit it.
Here is what we do:
- Level selection advice: We review your business and client base and advise which CHAS level gives you the strongest commercial return
- Gap analysis: we check your current documents against CHAS requirements and identify exactly what needs improving
- Document development: we help you create or update your H&S policy, RAMS, training records, and all supporting documentation
- Application support: We guide you through the CHAS portal and help you complete the questionnaire accurately
- Evidence organisation: we prepare and present your documents clearly so assessors can review them quickly
- Multi-scheme planning: we advise on CHAS alongside SafeContractor, SMAS, and Constructionline, where relevant
- Renewal management: we help you maintain compliance year-round, so renewal is always straightforward
- DTS route guidance: if you already hold another SSIP accreditation, we advise using the Deem to Satisfy route to get CHAS faster
We have helped contractors across construction, facilities management, security, maintenance, cleaning, and specialist trades achieve CHAS accreditation, many of them in days, for the first time.
If you want to get CHAS accredited without delays or uncertainty, speak to our team today. Visit bizgrow-holdings.com to get started.
Conclusion | Get CHAS Certified With Confidence
CHAS accreditation is one of the most valuable investments a UK contractor or business can make in 2026.
It removes barriers to tenders and builds trust with clients. It demonstrates that your health and safety systems have been independently verified, not just self-declared. And since June 2024, CHAS Elite is now required for public sector pre-qualification under PPN 03/24.
The requirements are clear and achievable. The process is structured and straightforward, especially with the right support.
Do not wait until a contract falls through because of a missing CHAS certificate. Start your application today. And if you want expert support to get it right the first time, BizGrow Holdings is here to help.
Visit bizgrow-holdings.com today.
FAQs About CHAS Accreditation in the UK
1. What is CHAS accreditation, and what does it mean?
CHAS accreditation means your business has been independently assessed and confirmed to meet recognised UK health and safety standards. It is a third-party verified certificate, not self-declared, recognised by over 1,000 public and private sector organisations.
2. What are the CHAS Elite requirements?
CHAS Elite requires compliance across 13 areas of risk management, including health and safety, environmental management, quality, equality and diversity, financial standing, anti-bribery, modern slavery, and subcontractor management. It includes SSIP, PAS 91, and the Common Assessment Standard.
3. How long does CHAS accreditation take?
Well-prepared businesses can receive their certificate within a few working days. Most applications are completed within 1 to 2 weeks. Delays are almost always caused by missing documents, outdated policies, or slow responses to assessor queries. BizGrow Holdings helps you prepare everything before you submit.
4. Can I apply for CHAS if I already hold another SSIP accreditation?
Yes. If you already hold a valid SSIP certificate from SafeContractor, SMAS, or another member scheme, you can apply to CHAS via the Deem to Satisfy (DTS) route. This recognises your existing H&S assessment and reduces the work required to get CHAS approved.
5. Is CHAS accreditation a legal requirement in the UK?
CHAS is not a legal requirement for most businesses. However, it is a contractual requirement for many UK clients, especially in construction, facilities management, and the public sector. Since June 2024, CHAS Elite is required for public sector pre-qualification under government PPN 03/24.