If you are thinking of buying new bat rubbers, you need to check the latest list of authorised racket coverings.

Two LARC (List of Authorised Racket Coverings) lists are published each year:-

List A on 1st April, valid from 1st April to 30th September and List B on 1st October, valid from 1st October to 31st March.

Coverings that are due to be withdrawn from the LARC are allowed a further 3 months of use after the publication date, until 31st December and 30th June respectively.

The latest list can be found at the ITTF website or clicking on LARC.