Emamectin benzoate (EMBZ) - environmental quality standard implementation timescales: consultation analysis

Executive Summary

In December 2022, Scottish Ministers accepted the UK Technical Advisory Group’s (UKTAG) recommendation on a new Environmental Quality Standard (EQS) for emamectin benzoate. Emamectin benzoate is used widely in medicated feed by marine fish farms to control sea lice. Ministers also approved a public consultation on the timescale for implementing the new EQS in existing farms licenced under previous EQS thresholds. The consultation was launched in April 2023 and closed on 24 July 2023. In order to address concerns expressed by the fish farm industry whilst also balancing these with a requirement to protect the environment, Scottish Ministers will direct the Scottish Environmental Protection Agency (SEPA) to implement the new EQS when the Directions come into force. SEPA will work with the operators of fish farms to implement the new EQS level based on the individual circumstance of each fish farm site.

Twenty five responses were made to the consultation from across the fish farm industry, regulators, interest groups, and individuals. There were opposing responses to many of the questions reflecting the different perspectives of those engaged in discussions about aquaculture. The consultation responses have been analysed and considered in making our final guidance on the implementation of the revised EQS for emamectin benzoate.

Given the concerns raised by the sector, and whilst balancing these with a requirement to protect the environment, Scottish Ministers will direct SEPA to vary existing licenses to implement the new EQS in 48 months. SEPA will work with the operators of fish farms to make the improvements or mitigate the effects on their operations of doing so.