Can other local authorities join the Joint Waste Authority after its initial establishment?

6.31  The Secretary of State's power under section 207(1) to make an order establishing a JWA extends to allowing the Secretary of State to amend the order. For example, it is possible for the Secretary of State to vary an order which established a JWA so that the JWA can take on additional functions or authorities or shed functions or constituent authorities. Any such amendment would be subject to the same conditions and limitations as the legislation imposes on the making of the original order. Therefore, all the steps in sections 205 and 206 of the Act, and any other regulations, rules or guidance pertaining to them, must be followed. All the constituent authorities must agree and a proposal must be made to the Secretary of State for a restructured JWA. The changes would need to have clear benefits, and would require local consultation. Appendix One compares the key features of a Joint Committee (usually also operating with a lead authority) and a Joint Waste Authority.