Only GPS with either selectable scaling to 0.3, flight director, or
autoflight coupled to RNAV. DME/DME is not authorized RNP 0.3 except
with special authorization at some locations.

Thank you. In regards to the last, the instrument approach plates
that do not allow RNP 0.3 say "Not Authorized". I assme that every
plate without that IS authorized. Are you saying that the latter is
"special authorization" ?