This approval takes effect on 29 March 2023 and supersedes the previous approvals which took effect from the 23 November 2022, 30 April 2015, 31 July 2014, and 2 October 2014.
Daw’r gymeradwyaeth hon i rym ar 29 Mawrth 2023 ac mae’n disodli’r cymeradwyaethau blaenorol a oedd mewn grym o 23 Tachwedd 2022, 30 Ebrill 2015, 31 Gorffennaf 2014 a 2 Hydref 2014.