Friend coming from Udon Thani - Quarantine?

[Barley]

Hello, 

I would like to invite a friend from Udon Thani to come either by bus or by air. 

 

Would she need to quarantine upon arrival in Chiang Mai? 

 

Thanks for your help. 

[MisterTee]

My wife's cousin and his wife drove in from Udorn Thani where they live yesterday without any problems.

   So unless there are any very recent rule changes I don't think there is anything to worry about.

[KhunBENQ]

All of Isan and the north incl. Chiang Mai have been eased from "red" zone to "orange".

Very unlikely that you will be bothered.