6 b. Service in the reserve or auxiliary forces of the
British Commonwealth of Nations shall count
provided such service has not been recognized
by any other long service, good conduct, or
efficiency medal; and
6c. Personnel who were serving in the Permanent
or Regular Forces of the British
Commonwealth of Nations on or prior to
1 September, 1939, may, if they so desire,
count subsequent service for the award of The
Canadian Medal for Long Service and Good
Conduct (Military), The Royal Canadian Navy
Long Service and Good Conduct Medal or The
Royal Canadian Air Force Long Service and
Good Conduct Medal under existing
regulations for these awards.
The CD is awarded under Canadian Rules so 1yr reserves = 1yr toward the CD. Supplementary Reserve time does not count.