What is the meaning of GPS IAP RNP that appears in Notes?
The AC covering RNP APCH can be found here. Under RNP APCH Operations it lists:

6.3 RNP En Route, RNP Terminal, and RNP APCH Operations:

The pilot is not required to monitor ground-based NAVAIDs used in position updating unless specified by the Airplane Flight Manual
(AFM).

The pilot must comply with published and assigned altitudes, and airspeeds.


Note: Pilots operating aircraft with a barometric vertical navigation
(baro-VNAV) system must ensure compliance with all altitude
constraints as published in the procedure by reference to the
barometric altimeter.

The full qualifications can be found in APPENDIX A. QUALIFICATION CRITERIA FOR REQUIRED NAVIGATION
PERFORMANCE APPROACH (RNP APCH) OPERATIONS (not copied for brevity)
The landing minimums in the parentheses are non civilian minimums and generally for use by the military although the chart reference strictly says &quot; All weather minimums in parentheses not applicable to Cilil Pilots. Military pilots refer to appropriate regulations&quot; so there may be other qualifiers (Im not a military pilot and cant comment beyond this)

(source)