These Regulations amend the Hazardous Waste (Wales) Regulations 2005 (S.I. 2005/1806 (W. 138)) (“the 2005 Regulations”) in order to supplement Regulation (EU) 2019/1021 of the European Parliament and of the Council on persistent organic pollutants (recast) (OJ No. L 169, 25.6.2019, p. 45).