The following persons must have regard to the policies published by the Welsh Ministers in the strategy when exercising any function of a public nature that could affect the quality of air in Wales—
local authorities in Wales;
relevant Welsh public authorities.
In this Part, "relevant Welsh public authority" means a person designated in accordance with subsection (3) as a relevant Welsh public authority.
The Welsh Ministers may by regulations designate a person as a relevant Welsh public authority if (and only if) that person is a "devolved Welsh authority" within the meaning of section 157A(1)(a) of the Government of Wales Act 2006.
Before making regulations under subsection (3), the Welsh Ministers must consult—
the person that is proposed to be designated, and
such other persons as the Welsh Ministers consider appropriate.