Section 76.140 - Amendments to a State plan(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: (1) The information or the assurances in the plan;(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. Authority: 20 U.S.C. 1221e-3 , 1231g(a) , and 3474