220.3. Except for trailers designed exclusively for dwelling or office purposes, trailers and semi-trailers measuring at least 2.05 m in width and having a net mass in excess of 3,000 kg must be equipped with reflective material in accordance with the Motor Vehicle Safety Act (Statutes of Canada, 1993, chapter 16).
The first paragraph applies from 1 January 1999 to every semi-trailer that is not less than 15.5 m and not more than 16.20 m in length and to every trailer or semi-trailer built on or after 1 December 1993. It applies from 1 January 2002 to every other trailer or semi-trailer.