Since you are not from a current hotspot, this is more of an "non-issue " issue. You would need to find a CAP certified rapid test, from the 619 I am guessing that you are from California.
You probably have this link, but I will post it for those who may want to use it:
https://www.cdph.ca.gov/Programs/OSP.../COVID-19.aspx
Following the links you can find the testing centers.
Your trip is still a few weeks away and Jamaica's rules will no doubt change. The testing might change in California as Mulvaney has been quoted that the testing in the US is simply inexcusable.
Things are changing in such a rapid pace that all I can suggest is keep checking for testing centers and plan a test for 10 days before your trip. You might not even need it. Might not....
