BS 7121 Safe Use of Cranes: What the Code of Practice Requires
BS 7121 is the British Standard code of practice for the safe use of cranes. It is not law on its own, but it is the benchmark used to judge whether a lift met the LOLER 1998 duty to be properly planned, supervised and carried out. In short, it asks for named lift roles, a written plan for anything beyond a routine lift, checked ground conditions and a controlled exclusion zone. BS 7121 is a British Standard (published in multiple parts) that sets out detailed good practice for the safe use of cranes, covering everything from lift planning and appointed person duties to specific guidance for mobile cranes, tower cranes and crawler cranes. It isn't law in itself, but it's the industry benchmark that LOLER 1998's requirement to plan lifts properly is measured against — HSE inspectors and client auditors routinely reference BS 7121 when assessing whether a lifting operation was genuinely well planned rather than just documented.
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Who it applies to
BS 7121 applies wherever cranes are used to lift loads at work — construction sites, quarries, ports, wind farm construction and civils projects across Aberdeenshire. It's referenced by principal contractors' method statements and by plant hire and lifting companies as the standard their appointed persons and crane crews are expected to work to.
What it requires
- A clear structure of roles for every lift: appointed person, crane supervisor, slinger/signaller and crane operator, each with defined competence
- Written lift plans for all but the most routine, repetitive basic lifts, with complex lifts requiring a fuller method statement
- Ground condition assessment and outrigger/track bearing pressure checks before a crane is set up
- Defined exclusion zones, communication methods and abort criteria including wind speed limits
- Regular review of crane operations against changing site conditions, load types and equipment
Mobile Crane Training
- Duty charts, outrigger setup and ground bearing
- Lift planning, signals and exclusion zones
- Daily inspections and reporting defects
What inspectors & client auditors look for
- Whether a written lift plan exists for non-routine lifts and whether it was actually followed on the day
- Whether ground conditions and bearing capacity were checked and recorded before outriggers were set
- Whether the appointed person can demonstrate genuine competence rather than just holding a certificate
- Whether abort criteria (including wind limits) were briefed to the team and whether anyone had clear authority to stop the lift
Duties touching plant training & competence
- Appointed persons need training and demonstrable experience in lift planning specific to the crane type and lift complexity involved
- Crane operators need category-specific accredited training (NPORS) plus familiarity with the specific machine's load charts
- Slingers and signallers need dedicated training in safe slinging, exclusion zone management and clear signalling
- Crane supervisors need training that covers coordinating the whole lift team and enforcing the written plan on the day
Related courses
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FAQs
Is BS 7121 a legal requirement?
It's a British Standard rather than a regulation, but it's widely used as the benchmark for demonstrating compliance with LOLER 1998's duty to properly plan lifting operations.
What's the difference between a crane supervisor and an appointed person under BS 7121?
The appointed person plans the lift and takes overall responsibility for the operation; the crane supervisor manages the lift team and coordinates activity on the day, and on smaller lifts the same person may hold both roles if genuinely competent to do so.
Does BS 7121 cover telehandlers used for lifting?
The core principles — planning, ground checks, exclusion zones, competent roles — apply in spirit to any lifting operation, though BS 7121's detailed parts focus specifically on crane types; telehandler lifting is also covered directly under LOLER and PUWER.
How often should a crane lift plan be reviewed?
Whenever load, site conditions or equipment change; a generic plan for repetitive basic lifts can be reused only while conditions genuinely stay the same.
Which roles does BS 7121 name for a lift?
The appointed person, the crane supervisor, the slinger/signaller and the crane operator, each with defined competence for the lift in question.
Does every crane lift need a written plan under BS 7121?
All but the most routine, repetitive basic lifts need a written lift plan, and complex lifts need a fuller method statement.
This page provides general guidance for site managers and duty holders and does not constitute legal advice. Always refer to the current legislation, associated Approved Codes of Practice and HSE guidance, or seek professional legal advice for your specific circumstances.
Putting BS 7121 into practice on a working site
The standard turns into four questions a site manager can check before the hook moves. Who is the appointed person and have they signed the plan? Who supervises the lift on the day? Who slings and signals, and do they hold a slinger/signaller ticket? And has the crane operator seen the plan, the load weight and the ground report?
Most failures found at audit are not dramatic. They are a plan copied from an earlier job, outrigger mats sized by habit rather than bearing pressure, or a signaller who was never briefed on the abort criteria. Reading the plan against the real lift on the day catches most of them.
Training links directly to these roles. Banksman slinger training covers sling selection, signals, radios and exclusion zones, and the lift planning guide walks through classifying a lift as basic or complex.