The BC Child Care Licensing Regulation defines a Responsible Adult as a person who is qualified to act as a responsible adult under section 29 which requires a responsible adult to:
be at least 19 years of age
be able to provide care and mature guidance to children
have completed a course, or a combination of courses, of at least 20 hours duration in child development, guidance, health and safety or nutrition, and
have relevant work experience
Fact Sheet with full details can be found at this link.