Join Certified Gas
Pick a plan.
Start practising.
ACS reassessment practice for working engineers. Secure Stripe checkout. Pass is the clear choice for most renewals this season.
Featured – Pass
£49 one-time
90 days of full packs. Practice + mocks. Best for engineers renewing this season.
Monthly
£24.99 /mo
Ongoing access. Cancel anytime when you are through reassessment.
Annual
£79 /year
Best value across the year – firms and engineers who want continuous access.
What is included
- ✓ Full CCN1 + Core & 4 packs
- ✓ Practice + mocks
- ✓ Instant explanations + refs
- ✓ Ed4 tightness readiness
Not sure? Try the free sample first ->
- Stripe secure checkout
- Revision only – not an awarding body