Miss. Code Ann. § 63-17-91: Miss. Code Ann. § 63-17-91

(1) Any interested party shall have the right to have the commission call a hearing for the purpose of taking action in respect to any matter within the commission's jurisdiction by filing with the commission a verified complaint setting forth the grounds upon which the complaint is based.

(2) The commission may on its own motion call a hearing for the purpose of taking action in respect to any matter within its jurisdiction.