My PSA tests, three of them, all have been <0.01 Undetectedable. I’m getting tested every three months.

My oncologist and urologist said you start if you have any elevation in more than 2 Weeks or at .3 +with a higher Gleason being an even stronger reason..

Active surveillance does not mean you won't have the treatment. Instead, it means you've chosen to wait at least a little longer. So in a sense, we always start out with active surveillance, no matter what we choose. My urologist wants to start at around 0.10 (on the uPSA--tracking with ultrasensitive PSA. The long term consensus used to be starting at 0.20.
So the trend has been to start sooner for better results, not to wait any longer when the PSA is already past 0.2. UCLA, Johns Hopkins, and others have moved toward starting at 0.03 for better long term results and perhaps less total radiation also. If you're still in active surveillance, you might want to ask yourself how you will know that your surveillance has noted enough activity that you are ready to act.