Annex Part I -
2. In so far as they are capable of being recharged by means of wired charging, the categories or classes of radio equipment
referred to in point 1 of this Part shall:
2.1. be equipped with the USB Type-C receptacle, as described in the standard EN IEC 62680-1-3:2021
It does define the standard
http://data.europa.eu/eli/dir/2022/2380/oj