May 2025 CTCB-I Cleanroom Testing course
Another Full CTCB-I Cleanroom Testing Programme Underway at CCN
This week, the CCN is proud to host another full CTCB-I Cleanroom Testing Programme, welcoming a new cohort of Professional Certifier and Associate candidates. Participants have travelled from across the UK and mainland Europe to join this respected certification course, held at the historic Letchworth Hall Hotel.

What the CTCB-I Programme Involves
The Cleanroom Testing and Certification Board – International (CTCB-I) programme is a comprehensive assessment designed for professionals working in cleanroom environments. It is recognised internationally as a benchmark of competence in the field of cleanroom and controlled environment testing.
Candidates undertake:
- A theory examination covering cleanroom standards, practices, and compliance
- A set of practical assessments where participants demonstrate their hands-on skills
- A report-writing task designed to evaluate their ability to interpret, document, and communicate testing outcomes
Whether you’re working as a contractor, facility manager, or validation technician, this certification is strongly recommended for those involved in cleanroom operation, testing, or compliance assurance.
A Growing Community of Certified Professionals
Over the years, the CTCB-I programme has continued to grow in demand, reflecting the increasing need for standardised competence across cleanroom sectors including pharmaceuticals, healthcare, biotechnology, and advanced manufacturing.
This week’s intake includes both new candidates and those returning for reaccreditation, highlighting the importance of ongoing professional development in a fast-evolving industry.
Next CTCB-I Programme: October in Knutsford
If you missed this week’s course, the next opportunity to become CTCB-I certified will take place in Knutsford from 7th to 9th October. Spaces are already limited due to high demand.
Whether you’re aiming for Professional certification or starting your journey as an Associate, early registration is advised to secure your place.
Why Certify?
CTCB-I certification:
- Demonstrates a professional, recognised level of expertise
- Enhances your credibility when bidding for contracts or roles
- Supports internal quality and compliance standards
- Connects you with a growing network of qualified peers
To register for the October course or find out more about the CTCB-I pathway visit our courses page.