# The Plant Protection Products (Fees) Regulations 2001, Paragraph 13


Efficacy refers to the effectiveness of the product in consistently controlling the target pest without adversely affecting the treated crop, following crops or treated produce.

---
Source: https://www.legislation.gov.uk/uksi/2001/2477/schedule/paragraph/13 (the official version)
Page: https://openlegislation.uk/plant-protection-products-fees-regulations-2001/schedule/paragraph-13
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.