Edition 2 takes into account the subsequent finalisation of RTCA DO
236/EUROCAE ED-75 “Minimum Aviation System Performance Standards
(MASPS) for RNP Area Navigation”. This document has adopted the term
RNP-(x) RNAV for RNAV systems fully conformant to the MASPS where (x) is
the value of the required navigation performance. Therefore, for systems
meeting the additional functional requirements set out in the MASPS:
· RNP-1 RNAV would replace the term Precision RNAV;
· RNP-5 RNAV would replace the term Basic RNAV.
However for systems meeting the requirements of Edition 1 of this Standard
but not the requirements of the MASPS, the terms Basic and Precision RNAV
are retained.
Your 10 year old reference says the terms are used in this document not in general use.
This has been somewhat superseded.