RNP 1 vs RNP APCH

[seahawk185]

Hello,

I'm a bit confused by the difference between RNP APCH and RNP 1, particularly in terminal areas. If the aircraft is RNP APCH certified, it must have a navigation accuracy of +/- 1 nm in the initial and intermediate segments, and +/- 0.3 nm in the final approach segment.
However, reading about RNP 1, it's also for terminal areas.

So, is it possible that an aircraft is certified for RNP APCH and RNP 1, and what does "terminal area" mean in this context ? I can fly an approach but can't fly in a terminal area ?

Thanks in advance for any insight