The London-Carlisle—Glasgow-Inverness Trunk Road (from the former Preston County Borough Boundary to the Greater Manchester County Boundary) (Detrunking) Order 1978
The Secretary of State for Transport makes this Order in exercise of powers conferred by section 7 of the Highways Act(a), section 27 of the Local Government Act 1966(b) and now vested in him(c), and of all other enabling powers:—

(a) 1959 c. 25. (b) 1966 c. 42. (c) S.I. 1970/1681.