Procedures for making major amendments to advisory committee charters, such as substantial changes in objectives and scope, duties, and estimated costs, are the same as in §102-3.80, except that for discretionary advisory committees an agency must:

(a) Consult with the Secretariat on the amended language, and explain the purpose of the changes and why they are necessary; and

(b) File the amended charter as specified in §102-3.70.