The recognition comes as the WRA publishes its latest quarterly Landfill Disposals Tax statistics for October to December 2021 today.
Daw'r gydnabyddiaeth wrth i ACC gyhoeddi ei ddatganiad chwarterol diweddaraf Ystadegau’r Dreth Gwarediadau Tirlenwi: Hydref i Rhagfyr 2021 heddiw.