This is IP1. However, it has happened countless of times before that someone went from IP1 straight to PPR. So the "Background Check" status doesn't seem to be a precise indication whether they are actually working on your background check or not.
It appears it's just a matter of a specific button/checkbox etc. the officer clicks at some point.
very true... One of my friend went from IP1 to PPR on the same day.. he was CEC-Inland,, 4 months from AOR to PPR