34 CFR §300.192

1. (a)Before taking any final action to implement a by-pass, the Secretary provides the SEA and, as appropriate, LEA or other public agency with written notice.
2. (b)In the written notice, the Secretary—
   1. (1)States the reasons for the proposed by-pass in sufficient detail to allow the SEA and, as appropriate, LEA or other public agency to respond; and
   2. (2)Advises the SEA and, as appropriate, LEA or other public agency that it has a specific period of time (at least 45 days) from receipt of the written notice to submit written objections to the proposed by-pass and that it may request in writing the opportunity for a hearing to show cause why a by-pass should not be implemented.
3. (c)The Secretary sends the notice to the SEA and, as appropriate, LEA or other public agency by certified mail with return receipt requested.