Points 1 and 2 seem to quite clearly prohibit that.

If you terminated the USE at an exterior junction box, before the run goes interior, and switched to a suitable wiring method (such as THWN or XHHW) that would appear to meet the wording of point 2.

More efficiently, sell off the USE to someone with an appropriate use for it, and buy XHHW or THWN for the whole run, no exterior junction box needed.

To borrow a Harper-ism, *avoid the sunk-cost fallacy* as you apparently have a lot of unsuitable cable for the job you should be doing with suitable wires.