The parts of the legislation that sets out the details are section 10 of the 2017 Act and regulations 10 and 12 of the 2020 Regulations.
Y rhannau o’r ddeddfwriaeth sy’n nodi’r manylion yw adran 10 o Ddeddf 2017 a rheoliadau 10 a 12 o Reoliadau 2020.