True or False: Every pesticide must be registered with Health Canada.

Every pesticide must be registered with Health Canada prior to being sold or used in Canada. This ensures that the product has undergone a thorough safety assessment to evaluate its potential impact on human health and the environment. The registration process requires manufacturers to provide scientific data demonstrating the pesticide's efficacy, safety, and environmental impact. By mandating registration, Health Canada establishes a regulatory framework that protects consumers and promotes responsible pesticide use.

The other options suggest conditions under which registration might not be necessary or focus on specific use scenarios. However, the requirement for registration applies universally to all pesticides, including those used in non-agricultural settings, without exception for import or specific applications. This comprehensive requirement underscores the importance of regulating all pesticides to safeguard public health and environmental integrity.