Which number on pesticide labels is similar to the EPA registration number for materials from Canada?

The pest control product number is the correct choice because it functions similarly to the EPA registration number in the United States. When dealing with pesticides in Canada, this number identifies products that have been approved and registered under Canadian regulations. It provides assurance that the product has met the necessary safety and efficacy standards determined by Health Canada.

In comparison, the other options do not carry the same specific regulatory significance in the context of pesticide registration. The pesticide license number refers to the licensing of individuals or businesses to apply pesticides, while the import registration number is more related to the importation process rather than product registration. The Canadian agricultural number typically pertains to agricultural entities rather than specific products. Thus, the pest control product number is the most relevant and analogous to the EPA registration number.