RNP-1 vs P-RNAV

[G100driver]

I hate to bend the thread alittle, but are you required to show approval to operate under all the different acronyms?
or would it all be included in your ops manual?

In a word, "yes" Thus far, however, you do not have to a specific LOA for RNP-1 provided you meet the criteria of AC90-100 ...

RNP-1 approval is coming in the Pacific and I am sure that it will require an LOA if history is any judge.

http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/0/ab90f436c73d04f986256f9d00583fc2/$FILE/AC90-100.pdf