34 C.F.R. § 300.120
Monitoring activities
(a) The SEA must carry out activities to ensure that § 300.114 is implemented by each public agency.
(b) If there is evidence that a public agency makes placements that are inconsistent with § 300.114, the SEA must—
(1) Review the public agency's justification for its actions; and
(2) Assist in planning and implementing any necessary corrective action.