Correction to my previous. I must be getting senile!!!
Operational Constraints
• Pilots responsible for cold temperature corrections to all
published minimum altitudes/heights including initial and
intermediate segments, DA/H and missed approach.
• Baro-VNAV not permitted below minimum aerodrome
temperature for procedure. LNAV may still be used provided
a conventional RNAV procedure exists and pilot applies all
temperature corrections to minimum altitudes/heights
• Baro-VNAV only with local altimeter source available and
QFE/QNH as appropriate.
• Vertical path excursion less than +100 ft, -50 ft.
The above is PANS OPS.
Sorry for the confusion.