Management and Control of Building Hot and Cold Water Services P901

This course teaches you about the risk of legionella infection in domestic type hot and cold water systems. It also includes knowledge on the ill health effects it can cause, and how it can be controlled to reduce the risk of ill health in the workplace.   

Who is it for?

This course also educates employers on their legal duties for controlling legionella risk in domestic hot and cold water systems, following regulatory requirements such as the Health and Safety at Work Act, COSHH Regulations and Management of Health and Safety At Work Regulations. 

The qualification is suitable for anyone who is:  

Responsible for maintaining domestic type hot and cold water systems. This includes:  

  • Water system technicians and operatives 
  • Building and facilities managers 
  • Duty holders and other responsible persons 
  • Maintenance staff

Responsible for controlling legionella bacteria risks or for controlling health risks in the workplace. This includes:  

  • Legionella consultants 
  • Occupational hygienists 
  • Health and safety practitioners or health and safety managers 


The level of a qualification indicates the relative complexity and depth of knowledge and skills required to attain the qualification.  

This is a level 4 qualification in the BOHS qualifications framework, equivalent to NVQ Level 4 and HNC level.  

How is it delivered?

The P901 course runs typically on one day and includes six hours of teaching. 

Modules / Learning objectives

To provide you with an overview of legionella bacteria risk and how it can be controlled in hot and cold water systems in compliance with regulatory requirements. 


You must pass a Written Theory examination 


BOHS provides: 

  • A comprehensive Student Manual, which covers the full range of subject areas included in the qualification 
  • A support pack for tutors which provides sample examination questions and guidance on the written examination

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