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

Course details

  • Course code: D6AR
  • Duration: 5 days
  • Cost: £760 (+VAT). Plus KIWA registration and assessment fees (v5.3 KIWA fees – July 2018) + VAT (£485 for Operators / shell boilers or £535 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.


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


Already BOAS qualified if a renewing candidate.
Supply of mandatory evidence pack to demonstrate the above (requirements will be supplied) applies to all awards and renewals.


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] KIWA fees may be subject to change, you will be notified at time of booking  


Cost: £760 (+ VAT) Plus KIWA registration and assessment fees (£485 for Operators /shell boilers or £535 for Managers /shell boilers, £150+VAT for dual award (Operator/ Manager) other fees may also be applicable, we will advise on booking)

Upcoming courses

Start Date Duration Location Register
30/11/2020 5 Days
11/01/2021 5 Days
15/02/2021 5 Days
15/03/2021 5 Days
12/04/2021 5 Days
10/05/2021 5 Days
24/05/2021 5 Days
07/06/2021 5 Days
21/06/2021 5 Days
12/07/2021 5 Days
26/07/2021 5 Days
09/08/2021 5 Days
13/09/2021 5 Days
04/10/2021 5 Days
25/10/2021 5 Days
08/11/2021 5 Days
22/11/2021 5 Days
06/12/2021 5 Days

Write to us

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

01242 535 211

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