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Is my project notifiable? F10 checker

Not sure if your job needs an F10? Check in 2 minutes, free.

Three numbers, and you’ll see whether HSE needs an F10 notification for your project. No sign-up needed to see the answer.

Count every day construction work is likely to be carried out, including weekends and holidays, even if the work that day is short.

We work out person-days for you: average operatives × working days.

The checker uses the two tests in the HSE CDM 2015 FAQ and regulation 6(1) of the Construction (Design and Management) Regulations 2015. For who sends the notice, when, and what the form asks for, read our F10 notification guide.

Who does what under CDM 2015, notifiable or not? Read CDM 2015 explained, with a free one-page fact sheet for each role.