In exercising their powers under this Part of this Act to provide and operate a flood warning system, a local authority may combine with any other local authority, or with two or more other local authorities, so as to benefit both their area and the other area or areas concerned, on such terms and conditions as may be agreed between the local authorities.

Subsections (2) to (4) of section 119 of the [1947 c. 43.] Local Government (Scotland) Act 1947 (which relates to voluntary combinations of local authorities) shall apply in relation to any such combination as is mentioned in the foregoing subsection as they apply in relation to the combinations mentioned in subsection (1) of the said section 119, and in the said subsections (2) to (4) as so applying any reference to a function of a local authority shall be construed as including a reference to any power or duty of the local authority so far as relating to the flood warning system with which the combination is concerned.

In relation to a case where local authorities have combined under this section, any reference in this Part of this Act to a local authority shall (unless the context otherwise requires) be construed as including a reference to the combination of local authorities, and " area " shall be construed accordingly.