THE FUNCTIONAL SAFETY PLAYBOOK
The grey areas in IEC 61508 don't care about your schedule.
A peer community where functional safety engineers get confidence checks from experienced practitioners — when the decisions are hard, the standard doesn't give a clean answer, and the pressure is real.
Most functional safety engineers are the only specialist in the room.
Forums don't cut it. Colleagues often don't have the background. And the standard doesn't always give a clean answer. When the decision affects schedule, cost or sign-off, you need a proper technical discussion — not guesswork.
01.Rejecting a design
You know something isn't right but need to defend it technically and commercially.
02.Challenging a SIL claim
The vendor says SIL 2. You're not sure the application matches. Where do you draw the line?
03.Grey areas in the standard
IEC 61508 and 61511 leave genuine room for interpretation. Not all interpretations are equal.
04.Explaining why it can't go faster
The technical position needs to be defensible to people who don't speak the language.
FEEDBACK
What working engineers say.
Engineers inside the Playbook are handling multi-million pound safety programs every single day. Here is why they are here.
“Forums like this are great for me to reach out for confidence checks more than anything.”
— Anth Gunn, I&C and Functional Safety Engineer, UK
Two ways in.
Start free, upgrade when it makes sense.
Free Community
Tier 1No credit card required. Join a community of functional safety engineers across oil and gas, nuclear, pharmaceutical, space and more — and get into real technical discussions from day one.
What's included:
- Community discussions and peer threads
- Case studies and free resources
- Network with FSEs across 20+ countries
Premium
Tier 2Everything in free, plus live sessions and direct access to 20+ years of nuclear and process industry experience.
Everything in Free, plus:
- Decision Review Live — real project scenarios worked through live
- Weekly discussion and Q&A sessions
- Nuclear guidance notes (ONR TAG based)
- Selected functional safety templates and examples
- Direct peer support from experienced practitioners
Upgrade to Premium inside the community.
Most members expense Premium as professional development.
FOUNDER
Built by someone who's been the only FS engineer in the room.
I've been the only functional safety engineer on projects worth hundreds of millions — I know what the grey areas feel like when the schedule's slipping and the pressure's on.
I built this community because the conversations that matter in functional safety — the confidence checks, the peer critiques, the "is this right, or am I missing something?" moments — deserve a proper home.
Richard Kelly, CFSE, TÜV FSEngfounder, ROAK Engineering

Common questions.
Stop making the hard calls alone.
Join 250+ functional safety engineers. Real scenarios, experienced practitioners. Start free, upgrade when it makes sense.
