Sustainability means the use, development, and protection of resources at a rate and in a manner that enables people to meet their current needs while allowing future generations to meet their own needs; “sustainability” requires simultaneously meeting environmental, economic and community needs.
Safety means any product which, under normal or reasonably foreseeable conditions of use including duration and, where applicable, putting into service, installation and maintenance requirements, does not present any risk or only the minimum risks compatible with the product's use, considered to be acceptable and consistent with a high level of protection for the safety and health of persons.
Affordability means a housing unit that satisfies at least one of the following criteria: