RAMS vs risk assessment: what's the difference and when do UK trades need each (2026)
RAMS vs risk assessment explained. What each document is, how they differ, when UK construction needs each, and why most main contractors require RAMS rather than risk assessments alone.
"Do I need a risk assessment or a RAMS?" is one of the most common questions UK trades ask before starting a job. The short answer is: usually both, combined into one document. The longer answer is more nuanced and depends on the work, the contract, and what the main contractor demands. This guide explains the difference between a risk assessment and a RAMS, when each is required, and why most UK construction practice has settled on RAMS as the default.
What a risk assessment is
A risk assessment is a written document that identifies hazards in a piece of work, evaluates who might be harmed and how, scores the severity and likelihood of harm, and lists the controls in place to reduce the risk to an acceptable level. Risk assessments are required under the Management of Health and Safety at Work Regulations 1999 for any work activity that could reasonably foreseeably cause harm.
The HSE describes the risk assessment as a 5-step process: identify the hazards; decide who might be harmed and how; evaluate the risks and decide on precautions; record findings and implement; review and update. The output of the process is the risk assessment document, which captures the hazards and controls in writing.
A risk assessment is what is required by law. The risk assessment alone, however, does not describe how the work will be done.
What a method statement is
A method statement is a separate document that describes the step-by-step sequence of how a piece of work will be carried out safely. It answers the practical question: "show me how, in order, you are going to do this." A method statement specifies the equipment used, the personnel involved, the safety controls at each step, and the emergency arrangements.
Method statements are not strictly required by law in the same way risk assessments are - they are an industry-standard practice rather than a regulatory requirement. However, the HSE expects "safe systems of work" to be documented, and a method statement is the documentation of a safe system. So while the legislation says "risk assessment", the practice says "risk assessment plus method statement".
What a RAMS is
A RAMS - Risk Assessment and Method Statement - combines both documents into one. The first half is the risk assessment (hazards, controls, residual risk). The second half is the method statement (sequence, equipment, personnel, emergency procedures). UK construction has standardised on RAMS as the default document because main contractors want both pieces of information together rather than separately.
A complete RAMS in 2026 typically runs 10-15 pages and includes:
- Project information and scope
- Risk assessment matrix with all identified hazards
- Control measures in HSE hierarchy (engineering, administrative, PPE)
- Method statement with step-by-step sequence
- Plant and equipment register
- PPE register
- Legislation references
- Emergency procedures
- Sign-off and review schedule
Side-by-side comparison
| Aspect | Risk assessment | Method statement | RAMS |
|---|---|---|---|
| What it covers | Hazards and controls | How work is done | Both |
| Required by law? | Yes (MHSWR 1999) | Not directly | Effectively yes - via main contractor demand and CDM 2015 'safe systems of work' duty |
| Length | 2-5 pages | 3-7 pages | 10-15 pages |
| Audience | Worker, supervisor, HSE | Worker, supervisor | Worker, supervisor, main contractor, HSE |
| Frequency | One per work activity | One per work activity | One per work activity |
| Review trigger | Change of scope or annually | Change of scope or annually | Change of scope or annually |
| Typical UK construction usage | Increasingly rare alone | Almost never alone | Industry standard |
When you need each
Risk assessment alone
A risk assessment alone is sufficient for office-based or non-construction activities where the legal duty applies but a written method is not required. Examples: workplace ergonomics assessment, fire risk assessment for premises, manual handling risk assessment for general lifting. None of these are construction activities and none would normally have a method statement attached.
Method statement alone
Almost never. A method statement without an underlying risk assessment is rejected by every main contractor because the safety controls cited in the method statement need to be derived from a risk assessment process. There is no scenario in UK construction where you would submit a method statement without the risk assessment that informed it.
Combined RAMS
Almost all UK construction work. Any activity covered by CDM 2015 (which is essentially all construction work involving more than one contractor or lasting more than 30 working days) effectively requires a RAMS. Main contractors typically demand RAMS as part of pre-start documentation and will not allow work to begin without it.
Why UK construction has standardised on RAMS
The shift from separate documents to combined RAMS happened because main contractors wanted one document covering both the hazards and the work method. Reading two separate documents and cross-referencing controls between them was inefficient and error-prone. Combining them into a single RAMS solved this and became industry practice.
The result is that a UK trade business doing construction work effectively has to produce RAMS, even though the legal requirement is just for a risk assessment. The method statement portion is enforced by commercial pressure (main contractor pre-start checks) rather than legislation.
Common confusion
"My risk assessment is fine"
The risk assessment may be fine for legal compliance but rarely passes commercial pre-start checks. Main contractors want to see the method too. A risk assessment without a method is half a job in their eyes.
"The method statement is just the steps"
A complete method statement includes plant, personnel, emergency arrangements, PPE per task, and competency requirements. Listing the steps without these other elements is incomplete.
"I can use the same RAMS for every job"
Generic RAMS get rejected. Each project is supposed to have its own RAMS reflecting the specific scope, site, hazards, and controls. Some boilerplate is unavoidable, but the project-specific content needs to be there.
Generating both, faster
Writing risk assessments and method statements separately, then combining them into a RAMS, is the slow path. The Complys AI RAMS builder generates both halves of the document in one pass, drawing on trade-specific hazard libraries for the risk assessment portion and trade-specific sequence templates for the method statement. Total time: about 30 seconds for the AI generation; 5 minutes including answering setup questions.
See the RAMS builder or start the 90-day free trial.
FAQ
Is a RAMS legally required?
The risk assessment portion is legally required. The method statement portion is required by industry practice and main contractor demand. In commercial construction, both are effectively mandatory.
Can I write a RAMS for a small job?
Yes. Even small jobs need RAMS if the main contractor or client demands it. The proportion of effort should match the risk - a 1-day, low-risk job might have a 5-page RAMS, while a 6-month, high-risk project might have a 30-page RAMS.
Who can write a RAMS?
A 'competent person' - someone with sufficient training, knowledge and experience to identify hazards in the trade and devise effective controls. For most UK trade businesses, the owner, foreman or supervisor qualifies. External consultants are required only when in-house competence is insufficient.
How often must a RAMS be reviewed?
Reviewed when scope changes, when an incident or near miss occurs, when legislation changes, when controls prove inadequate, and at least annually. Most main contractors expect a review date in the document.
Related guides
- What is a RAMS document and do you need one? - the plain-English explainer
- RAMS template free UK 2026 - what makes a good template
- Method statement examples UK 2026 - real examples for several trades
- How to write a RAMS for scaffolding - step-by-step
Complys generates a complete RAMS - risk assessment plus method statement - for every UK trade. HSE-aligned, contractor-ready. 90-day free trial.