(a) Review and consideration of petitions made pursuant to § 294.12 shall be accomplished as follows:

(1) Review. The Secretary shall review petitions and may request additional information from a petitioner before deciding whether to accept the petition. If the Secretary requests additional information from a petitioner, the petition will be considered complete when the petitioner provides the additional information.

(2) Disposition. The Secretary or the Secretary's designee shall respond to the petition within 180 days of receipt of a completed petition. The response shall accept or decline the petition to initiate a State-specific rulemaking.