FDA(Food and Drug Association in the U.S.) is changing sunscreen regulations, and Health Canada is soon to follow. Check out the link below, an article by the Globe and Mail for for information:
http://www.theglobeandmail.com/life/health/new-health/conditions/health-skin-care/uva-v-uvb-health-canada-reviewing-sunscreen-rules/article2065432/page1/