From the article in your link:
"TPN media would like to note before listing the measures approved and changes that all of this needs final approval by the Thai Cabinet, who meet to review the proposals tomorrow, Tuesday, September 28th, 2021. After, the proposals will need to become legal orders in the Royal Gazette, and orders that affect provinces, such as easing of restrictions, will need Governor permission. Although some of these steps are mostly formalities, it is important for this to take place.
Finally, this is a developing story and some of these items could potentially change based on final meetings with the Cabinet or provincial orders."