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UK Def Stan 00-056 Issue 8 for public review

Def Stan 00-056: Safety Management Requirements for Defence Systems

Issue 8 of Defence Standard 00-056, Part 1 (Requirements and Guidance),  has been released for review together with its counterpart, Part 2 (Guidance on Establishing a Means of Complying with Part 1) which is at Issue 6.

Please see this Safety Standards Watch post for more information on the standard and the review process.

Safety-Critical Systems Symposium - presentations and videos

The 31st Safety-Critical Systems Symposium was held at the Principal Hotel in York UK from 7th to 9th February.

All of the papers from the proceedings, presentations and videos of the presentations are available now at'23.

This was an extremely successful event with over 140 participants, most of whom were attending in person.

Feedback includes:

…thank you for a fantastic Symposium over the past three days - a really enlightening experience that has prompted a few different ways of thinking.

Thank you both for a very successful conference. Every year is getting better, and better!

It was great to attend a well-run SCSC symposium again.

IWD23 8th March

On International Women's Day (IWD) 2023, the SCSC would like to recognise and say thank you to the women engineers currently or recently involved with the club. They work in a wide range of safety-related sectors, and we are very grateful to them and their employers for their time, expertise and contributions.
They include:

  • Members of the SCSC Steering Group: Jane Fenn, Zoe Garstang, Louise Harney, Nikita Johnson, Wendy Owen and Emma Taylor (Wendy is also a co-author of the book “30 years of Safer Systems” alongside Louise Harney (and others) published in 2022.)
  • Nikita and Zoe Garstang are also involved in our Safety Futures Initiative (SFI) for younger members and STEM outreach.
  • Recent presenters at SSS ’23, including: Catherine Menon, Gill Kernick, Laure Buysse, Carmen Cârlan, Doria Ramadan and Marea de Koning. (Catherine, as well as doing many other things, has also contributed to an industry guidance document being developed by our security-informed safety working group.)
  • Special mention to Yvonne Oakshott for her assurance work and long-time support of SSS, Katrina Attwood for editing Newsletters and Amira Kawar for past work on Steering Group and with the Data Safety Initiative.
  • All of those women who participate in the SCSC Working Groups, including WG leaders Sarah Carrington (SASEWG) and Philippa Ryan (SASWG).

We intend to publish a more comprehensive article for INWED (International Women in Engineering Day), which will include historical and international contributors to the field.

International Womens Day 8th March

International Women's Day is on 8th March. The SCSC is producing a Newsletter article all about women in systems safety, covering both historic contributors and those active in the field today. If you know of anyone who ought to be included please contact The article will be published later in the year.

News archive:Page

Club Membership Fees Increase from 15th January (Jan 23)

Due to increasing costs the club membership fees will increase from 15th January 2023. This is the first increase for 3 years.

Individual membership will be £140 per year. For two years this is £250 (i.e. no increase on current one-year rates). For 3 years membership will be £350.

Old rates apply until 14th January. For all those booking onto SSS old rates apply up to 7th February (when purchased as part of the SSS booking).

(Dec 22)

The Early Bird discounts for SSS'23 expire on 22nd December. Please make your booking as early as possible. In addition the club will likely have to increase all prices in January, both for events and membership. It is definitely worth booking now!

SSS 23 Early Bird Discount expires 22nd December (Dec 22)
Present a Poster at SSS (Oct 22)

The SCSC Safety Critical Systems Symposium will be held in York in February 2023. There will be a poster session at the symposium where presenters can explain their work in a more informal setting. If you would like to present a poster then please submit a short abstract (1 paragraph) to by 30th November 2022. Full details at

Invitation to Review: IEC Committee Draft Document: IEC 61508 Edn.3 CD (Parts 1-7) (Oct 22)

Members of the SCSC are invited to review the Committee Draft of the 3rd Edition of IEC 61508 on Functional safety of electrical-electronic-programmable electronic safety-related systems.

This invitation is strictly available to current members of the SCSC only and should not be distributed. All members are requested to download their own copy.

The deadline for comments to is 9th December 2022. Late submissions are unlikely to be accepted.

The invitation to review, along with instructions on conduct of the review and links to the source documents is available at (accessible to logged in current members only)