Despite the free-trade agreement, one of the biggest changes is the UK's own chemicals legislation, namely UK REACH. This is a copy of EU REACH, and most of the legal regulations are identical. Amendments and non-completed procedures (e.g. authorisations) will not be automatically transferred to UK REACH from 1 January 2021. The responsible UK authority is the Health and Safety Executive (HSE). Under UK REACH, all chemicals traded in GB from one tonne per year must be registered, unless they are exempt. There are several registration options: ...