Cyhoeddodd y Gweinidog Iechyd a Gwasanaethau Cymdeithasol yn ei Ddatganiad Ysgrifenedig i’r Cabinet dyddiedig 25 Medi 2020 y bwriad i ddod â’r darpariaethau sydd wedi eu cynnwys ym Mhennod 1 Rhan 3 o Ddeddf Iechyd y Cyhoedd (Cymru) 2017 a Rheoliadau Mangreoedd a Cherbydau Di-fwg (Cymru) 2020 i rym ar 1 Mawrth 2021.
In his Cabinet Written Statement of 25 September 2020, the Minister for Health and Social Services announced the intention to bring the provisions contained in Chapter 1 of Part 3 of the Public Health (Wales) Act 2017 and the Smoke-free Premises and Vehicles (Wales) Regulations 2020 into force on 1 March 2021.