Scooby Snacks

I'll be flying up to Khon Kaen from Bangkok next week. Both my wife and I have each had two vaccinations as of December. Is there any requirement to prove a negative swab test flying into Khon Kaen or a week later back to Bangkok?

On second thought, I think back then I gave them my passport at the embassy and received the new one and the old punched and invalidated one back by mail. (Not sure what they did with it exactly at the embassy but I think it went out in diplomatic pouch). Having checked the website again, a quick question for the fellow that just had his passport renewed; Can you confirm there is no need to provide a prepaid envelope to the embassy? It says this will not be accepted in Thailand so I guess it means they just need my current address in Bangkok and then they will post back to me? My current thinking is to send in two months before the visa extension expires. (I think I can go anytime up to 45 days before the extension deadline, so I will receive the new passport within that window and get the stamp transfer and extension of stay done on the same trip. Just have to factor in Songkran holiday which could add up to a week to the turnaround time for the new passport. I know when I changed from a business to a retirement visa several years ago, they gave me only 7 days to transfer the stamp and apply for the new visa. Is anything like that in play that might affect the smooth transfer described above. Just thought I would ask because I never take anything for granted with this stuff....

Many thanks to UbonJoe, Skatewash and LopBuri3 for their replies. Yes, I was aware the passports aren't printed in Thailand and when I got my last passport 9 years ago the requirement was to apply in person, then the passport application + old passport were sent to the US and I went back 2 weeks later and pick it up. I see now they are promoting the mail in option. I was mistaken earlier because I thought for some reason that I had to mail the application overseas and wait for the new passport to arrive. Now I see that the transaction is with the US Embassy on Wireless Road. It's less than a mile or two away from my residence and even closer to the post office, so sending by registered mail should suffice. I see now they even have an option to pay online in advance for Thailand residents. Great! Also noted the advice about making copies, photos of passport details including entry stamp and latest visa extension in lieu of passport. Two weeks or so seems like no problem to wait for the new passport to arrive. My remaining issue is timing. I was told at MTT that the visa extension is only good for the duration of the passport. So if I go in May to make the extension deadline, the new date will only extend to March 2023 instead of early June as now. Also, I think the passport becomes pretty much useless to travel internationally 6 months prior to expiration (not sure about domestic travel), So I'm guessing it would be best to renew a few weeks before I normally go and get the extension and then get the new passport transfer stamped at the same time I get the new non immigrant O extension. Although I wouldn't want to cut the timing too close. Is there any advantage to doing the passport renewal right away and making an extra trip to CW for the transfer stamp or will the canceled old passport invalidate my current visa and if so, how many days do I have from receiving the new passport to report this to immigration. (I may also be planning domestic travel around end of March / Songrkan period which could further complicate the schedule). Anyone with relevant experience / advice, kindly respond. Thanks very much!

Update about my 90-day report: Visited the MTT immigration office a week ago Thursday. Showed them copies of the EMS slip and receipt by CW office of my mailed 90 day report. The officer checked and said the system had been updated and gave me a new receipt with next date of May 12. She said the new website will work so no need to mail the report in from now on. She acknowledged they had had problems before with the "overstay" issue, etc. My next question regards a passport which will expire in March next year and my next extension of stay which I will do in early May. The officer said that it would only be valid as long as the passport remains good so I would need to redo after 9 months it or order the new passport first and change over the stamps into the new passport (said it could be done at the same time as visa extension). I'm a little nervous this time because it seems the US embassy is no longer handling this directly and the passport must be mailed overseas, meaning I would be without a passport during the week or two processing time. Does anyone have any insight or experience with those issues? I apologize in advance if I'm asking this in the wrong forum. Thanks!

My last due date was November 24. Unable to do it online (overstay bug) so sent it in by mail on November 9 with prepaid return envelope. Still have received nothing back in the mail so have made an appointment online for February 10 (3 months since I mailed in the last one). Does anyone have any experience with mailing it in and still not receiving the confirmation with new date months later? I kept the EMS receipt. Are there any other things I should print out and show them when I go in? I guess I will need to pay the 2,000 baht fine even if I have proof that my application was delivered within two weeks of the previous due date or do they accept the EMS receipt as proof the report was made? My next extension of stay trip to CW will be in early May so hoping I can do the next report there and get back into the online system in future. Thanks.