Originally Posted by AIP ENR 1.1
11.7.3 Radio Navigation Aids
11.7.3.1 A flight which is planned to be conducted under the IFR on the
last route segment to its destination must provide for a suitable
alternate aerodrome, unless:
a. for Regular Public Transport and Charter operations:
(1) the destination is served by a radio navigation aid for
which an instrument approach procedure has been
prescribed and the aircraft is fitted with two independent
and separate radio navigation systems, each of which is
capable of using the aid; or
(2) the destination is served by two radio navigation aids for
which independent and separate instrument approach
procedures have been prescribed and the aircraft is
fitted with independent and separate radio navigation
systems capable of using these aids;