13. In Article 20 (enforcement authorities)—
(a)in paragraph (1) after “concerned” insert “and the Executive”;
(b)for paragraph (2) substitute—
“(2) Regulations may—
(a)make a specified authority or authorities of any specified class responsible for the enforcement of the relevant statutory provisions to such extent as may be prescribed;
(b)make provision for enabling responsibility for enforcing any of the relevant statutory provisions to be, to such extent as may be determined under the regulations—
(i)transferred from the Executive to a specified authority or from that authority to the Executive; or
(ii)assigned to the Executive or to a specified authority for the purpose of removing any uncertainty as to what are under this paragraph their respective responsibilities for the enforcement of those provisions;
and any regulations made in pursuance of sub-paragraph (b) shall include provision for securing that any transfer or assignment effected under the regulations is brought to the notice of persons affected by it.”;
(c)in paragraph (4)—
(i)after “concerned” insert “or the Executive”;
(ii)in sub-paragraph (b), for the words from “, and with respect” onwards substitute “in accordance with such guidance as the Executive may give to the authority.”.