(a) The Secretary shall suspend or terminate this part or subpart or a provision thereof if the Secretary finds that this part, subpart or a provision thereof obstructs or does not tend to effectuate the purposes of the Act,

(b) If, as a result of a referendum the Secretary determines that this subpart is not approved, the Secretary shall:

(1) Not later than 180 days after making the determination, suspend or terminate, as the case may be, collection of assessments under this subpart; and

(2) As soon as practical, suspend or terminate, as the case may be, activities under this subpart in an orderly manner.