Power to make provision in relation to reference methods of measurement for nitrate concentration
44.—(1) The appropriate authority may, by regulations, for the purposes of retained EU law which implemented Annex 4 to the Nitrates Directive, make provision about the reference methods of measurement for—
(a)nitrogen compounds in chemical fertiliser;
(b)the concentration of nitrates in freshwaters, coastal waters and marine waters.
(2) The provision which may be made under paragraph (1) includes—
(a)requiring a reference to Annex 4 to the Nitrates Directive (or a reference which encompasses that Annex) to be read as a reference to that Annex with modifications;
(b)amending provision which corresponds to that made by Annex 4 to the Nitrates Directive.
(3) Regulations under paragraph (1) may amend any subordinate legislation.
(4) The appropriate authority may only exercise the power in paragraph (1) to the extent that the authority considers it is appropriate to do so as a result of scientific and technical progress.