§ 457.65 Effective date and duration of State plans and plan amendments.
(a) Effective date in general. Except as otherwise limited by this section—
(1) A State plan or plan amendment takes effect on the day specified in the plan or plan amendment, but no earlier than October 1, 1997.
(2) The effective date may be no earlier than the date on which the State begins to incur costs to implement its State plan or plan amendment.
(3) A State plan amendment that takes effect prior to submission of the amendment to CMS may remain in effect only until the end of the State fiscal year in which the State makes it effective, or, if later, the end of the 90-day period following the date on which the State makes it effective, unless the State submits the amendment to CMS for approval before the end of that State fiscal year or that 90-day period.