When will the new Thailand entry rules take effect for travelers arriving after May 1st?

A user inquired about the new travel rules for Thailand and whether they would take effect for a friend arriving on May 1st. Responses clarified that the new rules had not yet passed into law and that the Thailand Pass website had not been updated accordingly. It was pointed out that the application for the new program would begin on April 29th, and until the rules are officially published in the Royal Gazette, the website will not reflect any changes.