21 F926As respects orders of [F924a strategic highways company orF924] a local authority other than [F925the council of a London borough or the Common Council of the City of LondonF925] under any of the provisions referred to in paragraph 20(1) above . . ., the [F927national authorityF927] may make regulations for providing the procedure to be followed in connection with the making of such orders, the submission of such orders for the consent of the [F927national authorityF927] or a county council where such submission is required, and the consideration by [F928 the national authorityF928] or by the county council of any such order submitted to [F928 the national authorityF928] or them; and the [F927national authorityF927] shall by regulations under this paragraph make such (if any) provision as [F929 the national authorityF929] considers appropriate with respect to—
(a) the publication of any proposal for the making of such an order;
(b) the making and consideration of objections to any such proposal; and
(c) the publication of notice of the making of the order and of its effect.