The parts of the legislation that set out the details are section 15 of the 2017 Act and regulations 15, 16 and 17 of the 2020 Regulations.
Y rhannau o’r ddeddfwriaeth sy’n nodi’r manylion yw adran 15 o Ddeddf 2017 a rheoliadau 15, 16 ac 17 o Reoliadau 2020.