Changes made by Council Directive of 9 October 1984 on limit values and quality objectives for discharges of hexachlorocyclohexane (84/491/EEC)
EU Directive 1984/491
No changes made by Council Directive of 9 October 1984 on limit values and quality objectives for discharges of hexachlorocyclohexane (84/491/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.