(a)If the Secretary determines that an amendment to a State plan is essential during the effective period of the plan, the State shall make the amendment.
(b)A State shall also amend a State plan if there is a significant and relevant change in:
(2)The administration or operation of the plan; or
(3)The organization, policies, or operations of the State agency that received the grant, if the change materially affects the information or assurances in the plan.