Handover & Completion · Best Practice · Completion

Client Handover Training Record

A record of training provided to the client on the operation and maintenance of building systems.

Last reviewed: 29 March 2026 — This guide reflects UK law as of this date. CDM 2015 / Contract remains current with no amendments enacted as of 29 March 2026. Next scheduled review: 29 March 2027.

Legal basis	CDM 2015 Regulation 4 (Client duties) + Contract requirements (JCT / NEC / bespoke)
Status	Best Practice — strongly recommended under CDM 2015 and typically a contractual requirement in the employer's requirements or project specification
Prepared by	Principal Contractor (PC) — coordinating the delivery of handover training across all specialist subcontractors and system installers
CDM Reg 4 duty	CDM 2015 Regulation 4 places a duty on the client to provide pre-construction information and to ensure that suitable arrangements are made for managing the project — including the provision of information necessary for the safe operation and maintenance of the building
Training covers	HVAC systems (heating, cooling, ventilation, BMS), electrical systems (distribution, lighting controls, generator), fire and life safety (fire alarm, sprinklers, smoke ventilation, emergency lighting), security (access control, CCTV, intruder alarm), and lifts (passenger, goods, firefighting)

1. Client Handover Training — Building the Client's Capability to Operate Safely

Client handover training is the structured process of transferring operational knowledge from the construction team to the client's facilities management team. It is a practical necessity for building safety — a building with complex mechanical, electrical, and fire safety systems cannot be operated safely by people who have not been trained on those systems. The training must cover normal operation, emergency procedures, routine maintenance requirements, and the location and use of isolation points and safety devices.

Under CDM 2015, the client has a duty to ensure that suitable arrangements are made for managing the project, and this includes ensuring that the information necessary for the safe operation and maintenance of the building is provided. The principal contractor, as the party who coordinated the construction and has detailed knowledge of the installed systems, is best placed to organise and deliver the handover training programme. In practice, training is delivered by the specialist subcontractors and system installers who have the detailed technical knowledge of each system.

The witness training record protects both the contractor and the client. For the contractor, it provides documented evidence that training was delivered, what was covered, and who attended. For the client, it confirms that their team has received the training necessary to operate and maintain the building safely. Without a training record, disputes can arise about whether training was provided, what systems were covered, and whether the client's team was given adequate instruction.

Structure training as a programme, not a single session

Structure handover training as a programme, not a single session — spread training over several visits before and after occupation. A single day of intensive training on every system in the building is ineffective. The client's team will not retain the information, and systems that have not yet been fully commissioned cannot be demonstrated properly. Plan a series of focused training sessions, each covering a specific system or group of related systems, scheduled at the point when each system is fully commissioned and ready for handover.

2. What a Witness Training Record Contains

The witness training record must capture sufficient detail to demonstrate what training was delivered, by whom, to whom, and what was covered. The following table sets out the key elements that should be documented for each training session.

Record element	What to record
Project details	Project name, address, contract reference, client name, and principal contractor. The training record must be traceable to the specific project and form part of the handover documentation package.
Training session	Date, time, duration, and location of the training session. Each session should be recorded separately with its own reference number. Include whether the session was a live demonstration, classroom briefing, or a combination of both.
Delivered by	Name, company, job title, and qualifications of the person delivering the training. Training should be delivered by a competent person with detailed technical knowledge of the system — typically the specialist subcontractor's commissioning engineer or technical manager.
Attendees	Full names, job titles, and organisation of every person who attended the training session. Attendees should sign the record individually to confirm their attendance. This creates an auditable record of who received training on each system.
Systems covered	A clear description of the systems and equipment covered during the session, including system references, equipment locations, and the scope of the training (normal operation, emergency procedures, isolation points, routine maintenance, fault diagnosis).
Documents provided	A list of all documents provided to the attendees during or as part of the training session, including O&M manuals, as-built drawings, commissioning records, test certificates, manufacturer's literature, and quick-start guides. Record the document reference numbers and revision status.
Client acknowledgement	A signed statement from the client's representative confirming that the training was received, that it covered the agreed scope, and that the client's team is satisfied with the level of instruction provided. This is the client's formal acceptance of the training for that system.
Outstanding actions	Any items that could not be covered during the session, any follow-up training required, any systems not yet available for demonstration, and any questions raised by the attendees that require a written response. Each outstanding action should have an owner and a target completion date.
PC sign-off	Signature of the principal contractor's representative confirming that the training session was completed in accordance with the handover training programme and that the record accurately reflects what was delivered.

3. Common Mistakes

Delivering training on systems that have not been commissioned

Training on a system that has not been fully commissioned is ineffective and misleading. If the system is not yet working as designed, the training will not reflect the actual operation of the system once commissioning is complete. Settings may change, control sequences may be adjusted, and performance characteristics may differ. Training must only be delivered on systems that have been fully commissioned, tested, and are operating at their design-intent performance. If commissioning is incomplete, defer the training until it is finished.

Delivering training to the wrong people

Handover training must be delivered to the people who will actually operate and maintain the building — the facilities management team, building managers, and maintenance technicians. Training delivered to the client's project manager or contract administrator, who will not be involved in day-to-day building operations, does not fulfil the purpose of handover training. The contractor should confirm with the client in advance who the correct attendees are and ensure those people are available for each session.

Attempting to cover everything in a single session

A full-day training session that attempts to cover every system in the building — HVAC, electrical, fire alarm, security, lifts, BMS, and all ancillary systems — will overwhelm the attendees. Information retention drops significantly after the first hour. Handover training should be structured as a programme of focused sessions, each covering one system or a group of related systems, delivered over several days or weeks. This allows attendees to absorb the information, ask questions, and practice operating each system before moving on to the next.

No record of what was actually demonstrated

A training record that simply states "HVAC training delivered" without detailing what was covered is inadequate. The record must describe the specific topics covered during the session: normal start-up and shutdown procedures, emergency procedures, isolation points, routine maintenance tasks, filter change schedules, BMS navigation, alarm responses, and fault diagnosis. Without this detail, there is no way to verify that the training was comprehensive or to identify gaps in the client's knowledge.

Not providing the O&M manual at the training session

The O&M manual is the reference document that the client's team will use to operate and maintain the building after handover. Training should be delivered with reference to the O&M manual so that attendees can see where to find the information they need. If the O&M manual is not available at the training session, the attendees cannot cross-reference the training with the documentation, and they will struggle to find the relevant information later. The O&M manual — or at minimum the relevant sections — must be provided before or at each training session.

4. Frequently Asked Questions

Is client handover training a legal requirement?▾

There is no single regulation that explicitly states "you must provide handover training." However, CDM 2015 Regulation 4 places a duty on the client to ensure that suitable arrangements are made for managing the project, including the provision of information necessary for the safe use and maintenance of the structure. The Health and Safety at Work etc. Act 1974 requires employers to provide information, instruction, and training to their employees. If the client's staff are expected to operate complex building systems, they must be trained to do so safely. In practice, handover training is almost always a contractual requirement specified in the employer's requirements or the project specification, and failure to provide it will constitute a breach of contract.

Who delivers the handover training?▾

Handover training is coordinated by the principal contractor but is typically delivered by the specialist subcontractors and system installers who designed, installed, and commissioned each system. The HVAC subcontractor trains on HVAC systems, the fire alarm installer trains on the fire alarm system, the lift installer trains on the lifts, and so on. These specialists have the detailed technical knowledge required to deliver effective training. The principal contractor's role is to programme the training sessions, ensure the correct attendees are present, and maintain the training records. For complex buildings, an independent commissioning manager may also be involved in coordinating and witnessing the training programme.

How long after practical completion should training continue?▾

Handover training should not end at practical completion. The initial training sessions should be delivered in the weeks leading up to practical completion, when systems are commissioned and available for demonstration. However, some systems cannot be fully demonstrated until the building is occupied and operating under realistic conditions. Seasonal commissioning (heating in winter, cooling in summer) also means that some systems will not have been demonstrated in all operating modes by the time of handover. A post-completion training programme should be agreed, typically covering the first 12 months of occupation, with return visits to cover seasonal operation, BMS fine-tuning, and any systems that were not fully available at handover.

What happens when the FM team changes after handover?▾

If the client changes their facilities management team or FM contractor after handover, the new team will not have received the original handover training. The original training records and O&M manuals become the primary reference for the new team. This is why detailed training records are so important — they document exactly what was covered, so that any gaps in the new team's knowledge can be identified. Some contracts include a provision for the contractor to deliver refresher training to a new FM team within a specified period after handover, but this is not standard. The client should ensure that their FM contract includes a requirement for the outgoing FM team to brief the incoming team on all building systems.

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