Control of Hazardous Substances – Personal Protective Equipment P603

P603 – Control of Hazardous Substances – Personal Protective Equipment gives you in-depth knowledge about the options available for controlling hazardous substances, how PPE works as a control measure, and how to select, use and maintain PPE effectively to reduce exposure to hazardous substances in the workplace.  

Who is it for?

P603 is a valuable qualification if you are interested in applying for BOHS’ Certificate of Competence (Control), as it demonstrates that you have the requisite knowledge to advise on all aspects of control in the workplace. 

This qualification is suitable for anyone responsible for implementing hazard controls in the workplace, and maintaining ventilation systems. This could include: 

  • LEV TExT engineers 
  • LEV system designers and specifiers 
  • Commissioning engineers 
  • Occupational hygienists 
  • Health and safety officers and managers 

It may also be suitable for those who wish to progress into these job roles. 


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. 

How is it delivered?

The P603 qualification is typically conducted over two days, which comprises a minimum of 14 hours of learning time. This includes 12 hours of teaching time and 2 hours’ independent study (in your own time).  

The course can be delivered more flexibly, such as one day per week, but should still include 12 hours of teaching time. 

Modules / Learning objectives 

Overall objective 

To teach you about the different options available for controlling health hazards in the workplace, and how to develop, organise and implement a successful personal protective equipment programme to reduce worker exposure to these hazards. 


  1. Hierarchy of Control  
  2. Achieving effective control  
  3. Personal Protective Equipment:  
    • General requirements  
    • Respiratory Protective Equipment (RPE)  
    • Chemical Protective Clothing (CPC)  
    • Gloves and dermal care  
  4. Practical 


You must pass a Written Theory examination within 12 months. 


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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