There is no standard answer to how long a RAMS review should take, because it depends on the complexity of the document, the scope of the work it covers and the competence of the reviewer. However, there are useful benchmarks and clear indicators that a review has been either rushed or not completed properly.
Typical review times
A straightforward RAMS document covering a single trade activity on a simple site — groundworks, steel fixing, mechanical installation — typically takes an experienced H&S manager between 45 minutes and one and a half hours to review thoroughly. This assumes reading the document in full, cross-referencing the scope against the hazard register, checking the control measures against the hierarchy and verifying the administrative details including sign-off dates, revision history and emergency procedures.
A complex RAMS covering multiple activities, specialist plant operations, confined space work or work near live services may take two to three hours to review properly. The complexity of the cross-referencing required increases significantly when the hazard register is long and the interactions between different activities on site must be considered.
What cuts review time without cutting quality
Having a consistent checklist that covers the same 15 sections in the same order on every review removes the cognitive load of deciding what to check each time. It also means that unusual documents — ones with non-standard formats or sections presented in an unusual order — are less likely to cause items to be missed.
Reviewing the cross-references first — scope against hazard register, hazard register against control measures, plant against hazard register — identifies structural problems early and can signal quickly whether the rest of the document warrants a full review or needs to be returned for revision.
What indicates a review was not thorough
Reviews completed in under 20 minutes for a standard RAMS document are almost certainly insufficient for the complexity involved. A 15-section document with a full hazard register, control measures for each hazard, and administrative sections to verify cannot be reviewed to an appropriate standard in that time.
Reviews that do not result in any queries or revisions on complex documents may indicate that the review was superficial. It is statistically unlikely that a subcontractor's submitted RAMS for a complex activity will be complete and adequate in every section on first submission.
The volume problem
The most common reason for insufficient review time is volume. A principal contractor's H&S team receiving RAMS submissions from multiple subcontractors in a compressed pre-construction period faces pressure to process documents quickly. In this context the tenth document reviewed in a day receives materially less scrutiny than the first, regardless of the reviewer's experience and diligence. This is not a failure of competence — it is the predictable consequence of human attention applied to repetitive detailed work at volume.
Processes that address the volume problem directly, rather than expecting reviewers to maintain consistent forensic attention across large numbers of documents, produce better outcomes than increasing the headcount of reviewers alone.
Two things change the arithmetic. Knowing what the reviewer at the other end is actually checking shortens the loop — see what a principal contractor looks for — and automating the mechanical pass removes the part of the read that degrades with fatigue, which is discussed honestly, limits included, in can you use AI to review RAMS documents. How long a scan takes has the timings.
This article is general guidance on UK construction documentation practice. It is not legal advice, a compliance certification or a substitute for review by your own qualified health and safety personnel, who remain responsible for deciding whether any particular document is adequate. See our disclaimer.