In some provinces, short of a body armour permit or being a LEO/security, you definitely do.
BC is indeed one of those provinces.
Here's BC's Body Armour Control Act: https://www.bclaws.gov.bc.ca/civix/d...24_01#section2
Here's the regulations relating to that Act: https://www.bclaws.gov.bc.ca/civix/d...atreg/203_2010
Section 2(3)(c) of the act mentions "is exempt [from needing a body armour permit] under the regulations."
Section 2(2)(d) of the regulations is the exemption for an individual who possesses a valid license issued under the firearms act.