n. — Administration, Law
in most provinces, an official who conducts civil marriages.
Type: 5. Frequency — Though the Government of Canada is the sole authority on marriage and divorce, each province has its own laws to regulate the formal ceremony of marriage. The term is virtually exclusive to Canada (see Chart 1). All provinces and territories, except Ontario, Quebec, New Brunswick and Nova Scotia appoint marriage commissioners, which explains the data in Chart 2. The criteria and duration of appointment vary by province.
See COD-2, which labels the term "Cdn (in some provinces)".
Images:

Chart 1: Internet Domain Search, 16 Aug. 2012 
Chart 2: Regional Domain Search, 8 Jul. 2013