The Board of Coun­ty Com­mis­sion­ers shall hold reg­u­lar ses­sions for the trans­ac­tion of the busi­ness of the Coun­ty on the first (1stand third (3rd) Mon­day of each month except when it falls on a hol­i­day, then the next Tues­day, unless oth­er­wise ordered. A quo­rum shall be nec­es­sary for the trans­ac­tion of busi­ness; a quo­rum con­sist­ing of a major­i­ty of the mem­bers of the Board. The meet­ings shall be held in the Coun­ty Build­ing. They may hold spe­cial ses­sions on the call of the Chair­man, or any two (2) mem­bers of the Board, when­ev­er the busi­ness of the Coun­ty requires it. If the meet­ing falls on a hol­i­day then meet­ing shall be held on the next sec­u­lar day unless pri­or notice is giv­en oth­er­wise.  (See 55 ILCS 5/2–4002)