Under UK REACH companies have to collect information on the properties and uses of the substances they manufacture or import above one tonne a year. They should also assess the hazards of the substance and any potential risks presented by its uses.
Registration applies to substances on their own, substances in mixtures (formulated products) and in certain limited cases to substances in articles. Chemical substances that are already regulated by other legislations such as medicines, or radioactive substances are partially or completely exempted from REACH requirements.
Under UK REACH, the principle of "one substance, one registration" has been retained . This means that manufacturers and importers of the same substance should be part of a 'j oint registration'. This is to minimise the use of animal testing and to allow the costs of generating the registration data to be shared. For new substance registration a fee is usually charged.
As the UK was previously a member of the EU, many GB -based companies will have already complied with these requirements under the EU REACH Regulations. To account for this, existing REACH registrations held by GB-based entities can be 'Grandfathered' into UK REACH. However, companies that have not previously manufactured or imported a particular substance will need to consider if it requires registration under UK REACH.