Question to the Department for Environment, Food and Rural Affairs:

To ask His Majesty's Government, further to the Written Answers by Baroness Hayman of Ullock on 20 March (HL5458 and HL5459), in what circumstances the Centre for Environment, Fisheries and Aquaculture Science (CEFAS) would insist that bioassays are undertaken; and how many times in the past five years CEFAS has required such bioassays, and for which disposal licences.

Cefas cannot insist that specific assessments are undertaken to support disposal licence applications as Cefas holds no regulatory power in that regard. Cefas can instead advise that certain assessments are undertaken or that certain licensing decisions are made, but decision-makers are not obliged to adhere to Cefas recommendations. Cefas does not collect data on how often certain assessments are recommended, however there are likely no examples of a bioassay or other ecotoxicological assessment being recommended in the past five years. Whilst such assessments can be recommended in line with the OSPAR guidelines, there may be significant costs associated for disposal applicants and there are currently no such assessments which have been validated by the MMO. Necessary assessments are still undertaken to determine if material is suitable for disposal at sea. The MMO assess applications on a case by case basis, and will request specific information from applicants where relevant and necessary to making a decision. Cefas is exploring the use of potentially more cost-effective assessments such as Microtox.