said by iLearn:
Not sure about NY but here in Ontario there is no code for putting shut off valves for each fixture.
in Ontario plumbing is inspected/enforced by the local municipality, not a provincial agency (to compare, electrical work is inspected by ESA, a provincial agency) ... but the rules are (generally) in Ontario Building Code section 7 - however, the municipality may choose to have stricter requirements. therefore, it is difficult to speak to requirements for all of Ontario, since they can vary from city to city. for example, in my city, fixture shutoffs are required; and one is "technically" required to have a permit/inspection for something as simple as a fixture replacement.