logo logo
Hello Guest, please log in for better site access.
Hello Guest, please log in for better site access.

Log in to

Please log in using either your email address or your membership number.

Register on

Please register with your name, email address, password and email preferences. You will be sent an email to verify the address.

   No thanks
   No thanks

Reset your password

Please enter the email address used for your account. A temporary password will be emailed to you.

Header image: Connected world - source Shutterstock
 Safety-Critical Systems Club 
 For Everyone Working in Systems Safety

The SCSC is the UK's professional network for sharing knowledge about system safety.  It brings together engineers and specialists from a range of disciplines and industries working in system safety, academics researching the arena of system safety, providers of the tools and services that are needed to develop the systems, and the regulators who oversee safety.

The SCSC provides seminars, workshops and tutorials throughout the year, with a three-day annual Safety-Critical Systems Symposium in February.

More about the SCSC

Latest news:

GSN Standard Version 3

Version 3 of the GSN standard is now available. See

This version's major changes include refinements to the Argument Pattern and Modular extensions and adds Confidence Argument and Dialectic extensions.

Further GSN resources are available from

SCSC Seminar on Software Maintenance

Software Maintenance: Legacy and Archaeology, Thursday 6 May, 2021 - Zoom,
This seminar considered the issue of software maintenance for safety systems. Often we have an incomplete view of the design and code and yet changes have to be made. What are the best strategies to use? How do we understand what the existing code does? How can we make safe changes? How do we re-verify? The speakers at this event explained their methods for tackling change to legacy code.

Code of Practice: Cyber Security and Safety
IET Code of Practice: Cyber Security and Safety

I'm pleased to announce that after 32 months of hard work and cross discipline/cross sector discussions, the IET has published the Code of Practice: Cyber Security and Safety. This work was supported by NCSC and is available for free download from the IET website.