How to Simplify Your Operations and Maintenance (O&M) Manual Process

What Is an O&M Manual?

An O&M manual (Operations and Maintenance manual) is a structured collection of documents provided at project completion. It explains how a building and its systems should be operated, maintained and managed safely throughout their lifecycle.

In construction and facilities management, this documentation becomes the primary reference point once the principal contractor and subcontractors leave site.

It supports:

• Building owners
• Facilities managers
• Maintenance teams
• Duty holders under health and safety law

Without clear operational information, buildings become harder and riskier to manage.

Why Is an O&M Manual Important?

The purpose of an O&M manual is straightforward, to ensure a building can be operated safely, efficiently and in compliance with legal and contractual obligations.

Accurate documentation:

• Reduces health and safety risks.
• Protects asset value.
• Supports planned and preventive maintenance.
• Enables work orders to be raised correctly.
• Demonstrates compliance with statutory requirements.

Legal responsibility does not end at practical completion. Owners, operators and duty holders retain ongoing obligations throughout the building’s life.

Incomplete or inaccurate manuals can lead to:

• Unsafe working practices.
• Equipment failure.
• Increased lifecycle costs.
• Enforcement action or prosecution.

Is an O&M Manual a Legal Requirement?

Yes, in practical terms.

While legislation does not mandate a single document format, UK health and safety law requires that accurate operational and maintenance information is provided to those responsible for managing a building.

Operations and maintenance manual requirements typically arise through:

• CDM Regulations.
• Contractual specifications.
• Employer’s Requirements.
• Building Control expectations.
• Handover documentation clauses.

Failure to provide correct information can expose organisations and individuals to corporate or personal liability.

Who Is Responsible for Producing the O&M Manual?

Multiple parties are involved in the project when compiling O&M documentation.

Typically:

• Subcontractors provide system-specific information.
• The principal contractor coordinates submissions.
• The Principal Designer ensures information is properly managed and delivered.

Although responsibility flows down the contractual chain, accountability ultimately sits higher. Problems in the O&M process are often only discovered once the building is occupied when rectification becomes more complex and costly.

What Should Be Included in an O&M Manual?

The contents depend on:

• Scope of works.
• Contract requirements.
• Whether the package is engineering-led or finishes-led.

However, there are common core elements.

Typical O&M Manual Contents

An O&M manual usually includes:

• As-built / record drawings
• Operating and maintenance procedures
• Manufacturer literature and warranties
• Health and safety information
• Testing and commissioning data
• Asset registers (where applicable)
• Maintenance schedules
• Emergency procedures

Finishes / Structural, Fabric & Externals (SFE) O&M Manuals

For finishes or SFE packages, the requirements are typically focused on core documentation.

These may include:

• Project definitions (address, client, consultants)
• Manual amendment schedule
• Schedule of “For Construction” drawings used
• Scope of works (what was completed, not what was specified)
• Directory of suppliers (with contact details and supplied items)
• Schedule of materials (product reference, supplier, colour/finish, location)
• Spares schedule (if included in contract)
• Cleaning and maintenance procedures
• Hazard information
• Health and safety documentation
• Record / as-built drawings
• Test information (if applicable)
• Manufacturer literature
• Contractual and manufacturer warranties

Engineering O&M Manuals

Engineering packages require additional technical depth.

An engineering manual will include everything above, plus:

• Contractor design information
• Detailed operating instructions for daily use
• Safe isolation procedures
• Fault finding guidance
• Distribution board schedules
• Asset register
• Schedule of special tools and test equipment
• Specialist examination and testing regimes
• Additional health and safety information
• Expanded material schedules (voltage, accessories, spares, etc.)

Engineering documentation must support facilities management teams long after project completion.

Common Challenges in the O&M Manual Process

O&M documentation often fails due to fragmented responsibility.

Typical problems include:

• Incomplete submissions
• Inconsistent formatting
• Missing supplier information
• Poor quality control
• Outdated revisions
• Documentation submitted after practical completion

These issues are frequently discovered only once building users rely on the information.

Best-Practice Approaches to Simplify the O&M Process

1. Independent O&M Information Management

Appointing an experienced, independent O&M information manager reduces risk.

Their role is to:

• Track completeness
• Identify missing documentation early
• Maintain visibility across all contractors
• Ensure operations and maintenance manual requirements are met

2. Make O&M Approval a Condition of Practical Completion

O&M manuals should never be treated as a post-handover afterthought.

Acceptable documentation should be a clear prerequisite for practical completion.

3. Use Standardised Templates and Checklists

Structured templates:

• Set consistent expectations
• Reduce variation
• Improve validation
• Simplify review processes

4. Conduct Spot Checks

Random audits of submitted manuals quickly reveal wider quality issues.

5. Establish Clear Accountability

Under law, the client retains ultimate responsibility.

Clear governance reduces disputes later.

Here is our top 10 errors common errors: Top 10 common errors when completing an Operation and Maintenance Manual

Keeping O&M Manuals Up to Date

Simplifying the O&M Manual Process with Digital Systems

Digital information management significantly reduces traditional risks.

A centralised online system ensures:

• Secure, structured storage
• Controlled revisions
• Full document traceability
• Easy access for facilities teams
• Accurate information for raising work orders

Instead of static binders, digital systems create a living building information library.

At Liaison Systems Ltd, we provide a full O&M information management service, including our online building information library system, View, designed to keep operations and maintenance documentation accurate, compliant and accessible throughout a building’s lifecycle.

Final Thoughts

An O&M manual is not simply a contractual deliverable. It is a critical risk management tool that supports safe building operation for decades.

When structured clearly, reviewed properly and managed digitally, the O&M manual process becomes:

• More efficient
• More compliant
• Less risky
• Easier to maintain

The key is not producing more documentation but producing the right documentation, managed correctly.