Boiler Operation Accreditation Scheme (BOAS) 5yr Renewal - Operator and Manager (SHELL boilers only)

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Course details

  • Course code: D6AR
  • Duration: 3 - 4 days, plus assessment
  • Cost: £1,625 (+VAT) Plus CEA registration and assessment fees (£485 for Operators / shell boilers or £535 for Managers / shell boilers REMOTE LIVE assessment £325 Operators / shell or £325 for Managers / shell boilers. Other fees may also be applicable, we will advise on booking)[2]

who is it for?

Qualified boiler operators and boiler plant managers/supervisors who have taken the BOAS course and are already entitled to use the designatory letters "Cert IBO" and "Dip BOM" respectively.

For new/inexperienced boiler operators, see D6 course. For boiler operators and managers wishing to obtain a BOAS qualification, see D6A course.

What is it about?

This is a renewal course for boiler operators and managers/supervisors who are already accredited within the BOAS. The renewal course should be taken on the 5th anniversary of gaining the BOAS award and 5 yearly thereafter [1].

There is no grace period for renewing candidates once the expiry date has been reached. Please contact us before your renewal date. Courses can be taken up to 6 months ahead of expiry.


Our Trainers, Mike Maslanka and Tom Suwart talk you through what you can expect from the training course.

Thank you ever so much for facilitating my BOAS course last week. I found the content very relevant, extremely interesting and its delivery first class. I have certainly taken away information that will help us operate our Auxiliary Boiler in a more efficient manner. The best course we have been on, particularly for how the content was delivered.
Classroom Attendee

Course Objectives

The BOAS syllabus5 comprises learning outcomes in 10 sections as follows:
1. Safety & Legal
2. Fuel Concepts
3. Draught and combustion
4. Environment
5. Energy Efficiency
6. Basic Heat & heat transfer concepts (shell boilers)
7. Feed water & boiler water analysis (shell boilers)
8. Boilers & Auxiliaries (shell boilers)
9. Operation (shell boilers)
10. Control and instrumentation (shell boilers)

The Assessment Process

The course includes all elements of the assessment process.
Both Operators and Managers need to complete the following: following:

1. Completion of mandatory evidence pack (different requirements for Operators and Managers)
2. Completion of series of written examinations1
3. Interview with an assessor to establish the individual’s knowledge and understanding, ability skills and experience4.


1 All candidates are required to sit examination papers regardless of award.
2 A renewal course is necessary at five yearly intervals
3 Exact examination papers undertaken will vary depending on award.
4 Interview may be conducted on final day of course or on a pre-arranged date via remote platform depending on course choice
5 Syllabus may be subject to change



Access your easy, step by step guide to collating your evidence pack, watch the video now >>


Familiarisation with the BG01 guidelines.


This course starts at 9:00am on the first day and finishes at 4:00pm on the final day.


[1] Based on current CEA guidelines but may be subject to change.
[2] CEA fees may be subject to change, you will be notified at time of booking  


Upcoming courses

There are currently no courses available.

Write to us

Spirax Sarco, UK Steam Technology Centre, Charlton House, Cheltenham, Gloucestershire, GL53 8ER