Provide a first response to a broken down or damaged heavy goods or public service vehicle

Business Sectors (Suites): Maintenance and Repair - Heavy Goods and Public Service Vehicles
Developed by: IMI
Approved on: 30 Mar 2021


This standard is about attending an incident, following risk assessment procedures, securing the site and vehicle and then making decisions for further action. This may involve conducting basic repairs on the vehicle to enable onward journey or initiating recovery of the vehicle and the people involved. It also includes providing information to, and seeking guidance from, relevant specialist authorities where hazardous substances or situations may be involved.

Performance criteria

You must be able to:

P1 wear suitable protective equipment throughout all roadside assessment, security and vehicle repair activities. 
P2 ensure compliance at all times with:

P2.1 health, safety and environmental legislation and codes of practice
P2.2 organisational procedures and risk assessments 
P2.3 manufacturers’ guidelines
P3 carry out and record a dynamic risk assessment of the vehicle and the site 
P4 secure and protect the incident site, including traffic control if necessary 
P5 safeguard the health and safety of yourself and others involved in the incident before, during and after assessment and repair activities 
P6 ensure your initial assessment of the vehicle identifies:

P6.1 the existence of any hazardous substances 
P6.2 any fire hazards
P6.3 the need for any special assistance
P7 provide accurate information, where necessary, promptly and clearly to all relevant authorities and your organisation covering:

P7.1 personal/medical requirements
P7.2 the prevailing weather conditions
P7.3 the location and roadside situation
P7.4 the nature of the incident
P7.5 hazards and risks
P8 seek assistance and guidance promptly from the relevant authorities when you believe that hazardous substances are present.
P9 ensure your initial assessment of the vehicle establishes :

P9.1 the nature and extent of any vehicle damage and/or breakdown
P9.2 the feasibility of the roadside repair
P10 make justifiable decisions for dealing with the vehicle and any people involved based upon the information gained from your initial assessment of the situation and  examination methods
P11 support your repair activities by reviewing technical information
P12 prepare, check and use all the equipment required following manufacturer’s instructions 
P13 identify and undertake basic repairs at the roadside on *vehicle systems  *
P14 perform a re-test to ensure the repair is successful

P15 arrange for the recovery of the vehicle if the repair does not meet legal and organisational standards
P16 report any anticipated delays in completion to the relevant person(s) promptly 
P17 ensure your records are accurate and complete and are promptly passed to the relevant person(s) 

Knowledge and Understanding

You need to know and understand:

Legislative and organisational requirements and procedures
K1 The legal requirements and industry codes of practice governing site protection, working at the roadside and vehicle recovery operations.
K2 The health and safety legislation, environmental requirements and workplace procedures relevant to repair procedures and personal protection.
K3 The range of services and resources available within your organisation.
K4 the legislation and workplace procedures relevant to 

K4.1 health and safety
K4.2 the environment (including waste disposal)
K4.3 appropriate personal and vehicle protective equipment
K5 Your workplace procedures for:

K5.1 recording removal and replacement information
K5.2 lone working reporting
K5.3 the referral of problems
K5.4 reporting delays to the completion of work
K5.5 vehicle and customer recovery
K6 the importance of using suitable personal protective equipment (PPE) and vehicle markings which comply with legislation and industry codes of practice
K7 the importance of documenting removal and replacement information
K8 the importance of working to agreed timescales and keeping others informed of progress
K9 the relationship between time and costs
K10 The hazards associated with working on or near high voltage electrical vehicle components

*Assessing and securing the site *
K11 the difference between a generic risk assessment and a dynamic risk assessment.
K12 the difference in requirements in securing and protecting a breakdown site and an incident site.
K13 the difference in requirements for securing the site dependent on time required to complete a repair or recovery
K14 the sources of specialist advice and guidance relevant to the incident.

K15 how to assess weather conditions and how these conditions affect the assessment and security of the roadside situation.
K16 how to carry out dynamic risk assessment of the immediate roadside situation surrounding an incident.
K17 the safety procedures appropriate to different road categories
K18 how to identify vehicles carrying hazardous substances.
K19 the circumstances in which to call for specialist assistance.
K20 how to secure and protect incident sites in line with: 

K20.1 current industry codes of practice, 
K20.2 organisational procedures, 
K20.3 health, safety and environmental legislation.
K21 how to take steps to secure the safety of yourself and others.
K22 the steps to take to clear the incident site following repair or recovery of the  vehicle.
K23 the possible consequences of inaccurate roadside risk assessment.
K24 how to use electronic and radio communication methods effectively.
K25 how to communicate with customers and relevant authorities.
K26 how to make an initial assessment of the extent of vehicle damage and or faults.
K27 how to interpret the results of your initial vehicle condition assessment and make justifiable decisions for your course of action.

Use of technical information
K28 how to find, interpret and use sources of technical information applicable to determine the correct repair method.
K29 how to find, interpret and use sources of technical information applicable to component removal and replacement
K30 the importance of using the correct sources of technical information
K31 the purpose of and how to use identification codes

K32 how to prepare, check and use all the test equipment required 
K33 how to prepare, check and use all the removal and replacement equipment required 

Basic motor vehicle repair
K34 basic vehicle systems features and operation 

K35 how to recognise the repair procedure for the appropriate fault within the system.


1. Sources of technical information are:

1.1. vehicle technical data
1.2. schedules of inspection
1.3. regulations

2. Examination methods are:

2.1. sensory
2.2. functional
2.3. measurements

3. Assessment of the vehicle is for:

3.1. malfunction
3.2. damage 
3.3. fluid levels
3.4. leaks
3.5. wear
3.6. security
3.7. condition and serviceability
3.8. conformity
3.9. necessity for adjustment(s)
3.10. corrosion

4. Vehicle systems include:

4.1. electrical systems & circuits 
4.2. engine systems
4.3. transmission systems
4.4. exhaust systems
4.5. chassis systems, including suspension, steering and brakes
4.6. cooling systems
4.7. body systems and components

Scope Performance

Scope Knowledge





This section contains examples and explanations of some of the terms used but does not form part of the standard.

Examples include conformity to manufacturer's specifications, UK and European legal requirements where applicable.

These could include the driver of the vehicle, any passengers or members of the public involved.

Dynamic risk assessment 
The practice of mentally observing, assessing and analysing an environment at all times while working, to identify and remove risk. The process allows individuals to identify a hazard on the spot and make quick decisions in regards to their own safety.

Something with the potential to cause harm (this can include articles, substances, plant or machines, methods of work, the working environment, and other aspects of work organisation)

Heavy goods and public service vehicles
These are medium and large goods vehicles, buses and coaches of 3500kgs gross vehicle mass (GVM) and above.

Sensory testing methods
These may include looking, listening, smelling and touching for heat.

Vehicle markings
Examples include magnetic chevrons and rotating beacons.

Vehicle technical data
Examples include hard copy manuals, data on computer and data obtained from on- board diagnostic displays

Workplace procedures*
To include lone working policy.

Links To Other NOS

External Links

Version Number


Indicative Review Date

31 Mar 2024





Originating Organisation


Original URN


Relevant Occupations

Engineering, Heavy Vehicle Diagnostic Technician (Automotive), Heavy Vehicle Service Technician (Automotive), Vehicle Trades, Bus and Coach Mechanic, Bus and Coach Mechelec

SOC Code



Heavy goods vehicle; public service vehicle; incident; response; risk assessment; hazard; repair; safety; bus; coach;