The Sea Fisheries (Amendment) Regulations 2021 (legislation.gov.uk) sets an unavoidable by-catch limit of 3.8 tonnes (3800kg) per vessel per year.
2021 (legislation.gov.uk) yn gosod terfyn sgil-ddalfa anosgoadwy o 3.8 tunnell (3800kg) fesul cwch fesul blwyddyn.