Which of the following is a key benefit of using the EPA Registration Number?

The EPA Registration Number is a key identifier for pesticides that signifies approval by the Environmental Protection Agency, indicating that the product has been thoroughly evaluated for safety and efficacy before it can be sold or used in the United States. This process involves rigorous review of the product's ingredients, potential risks to human health and the environment, and usage instructions. By having an EPA Registration Number, consumers can feel assured that the product they are using has met specific safety standards, making this a crucial benefit for consumer protection.

The other options do not accurately reflect the primary significance of the EPA Registration Number. For example, while tracking the chemical composition or providing manufacturing details could be useful, these are not the main purposes of the registration number. Price information is unrelated to the EPA registration; instead, prices are determined by market factors rather than regulatory assessments.