Indiana Code Title 10. Public Safety § 10-18-1-12

Sec. 12. (a) The commission may adopt rules that set forth:

as the commission considers prudent and not inconsistent with this chapter and other statutes.

(b) The commission shall meet at the call of the commission's president or at the time set forth in the commission's rules.  A majority of the members constitutes a quorum for the transaction of business.  However, all official action of the commission must receive the approval in a meeting of a majority of all the members of the commission.