Within 20 days after receiving a petition, the Secretary must:
(a) Notify the Tribe in writing that the Secretary has received a petition;
(b) Provide a copy of the complete petition to the Tribe;
(c) Initiate a petition consultation with the Tribe that will address the petitioner's allegation of a Tribe's noncompliance with a TERA and alternatives to resolve any noncompliance; and
(d) Notify the Tribe in writing by certified mail, return receipt requested, when the petition consultation is complete.