Originally Posted by
Doppy
There are mail-in PCR options, including Vault in the US, which people have been using for PCR destinations like Hawaii was until recently, as well as ones in the UK that many are using for the required "day 2 arrivals" testing.
Tough to see how a mail-in test could fit the requirements. Whether mailed-in or otherwise, the test has to take place within 72 hours of departure. That's playing one heck of a gamble on "mail" to get to the lab in time to do the tests and get results back to you.
OK, I looked up mail-in PCR tests and couldn't find any that are meant for pre-travel requirements.
From the website of one of them-
The average time to deliver results is currently 1-2 days from when your sample is received at the lab. Our labs process samples seven days a week. Check with your local FedEx for pick up and drop off schedules.
Or from
Vault-
PCRTESTING Individual and pooled saliva-based PCR tests
Modalities: At home via Zoom
Results: 24-48 hours from sample collection
Clearly not useful for the timeframe needed for travel requirements. It is something you can successfully perform from home, but the time until you get results will be the time spent "in the mail" plus 24-48 hours at the lab.