Actually, it isn't. This is the link you posted:
PART X FRAUDULENT TRANSACTIONS RELATING TO CONTRACTS AND TRADE
Public Stores
Unlawful use of military uniforms or certificates
419. Every one who without lawful authority, the proof of which lies on him,
(a) wears a uniform of the Canadian Forces or any other naval, army or air force or a uniform that is so similar to the uniform of any of those forces that it is likely to be mistaken therefor,
(b) wears a distinctive mark relating to wounds received or service performed in war, or a military medal, ribbon, badge, chevron or any decoration or order that is awarded for war services, or any imitation thereof, or any mark or device or thing that is likely to be mistaken for any such mark, medal, ribbon, badge, chevron, decoration or order,
(c) has in his possession a certificate of discharge, certificate of release, statement of service or identity card from the Canadian Forces or any other naval, army or air force that has not been issued to and does not belong to him, or
(d) has in his possession a commission or warrant or a certificate of discharge, certificate of release, statement of service or identity card, issued to an officer or a person in or who has been in the Canadian Forces or any other naval, army or air force, that contains any alteration that is not verified by the initials of the officer who issued it, or by the initials of an officer thereto lawfully authorized,
is guilty of an offence punishable on summary conviction.
By this, as long as you have permission to wear it, it is ok.... ??? ??? ???