An EU regulation on tyre labelling due to come into force on 1 May will not cover the rate at which tyres shed particles – a major contributor to microplastics in Europe – as an agreed method for the calculation of abrasion is still not in place. The requirement to list abrasion was included in the tyre labelling regulation, adopted in February 2020, but pushed back due to technical questions over how to measure the rate at which particles are jettisoned from tyres. It is estimated that a test method will be established by 2023. The European Commission’s updated circular economy action plan, released in March 2020, sets a goal of “measuring unintentionally released microplastics, especially from tyres and textiles”.