Chapter 2.04 BILLING This chapter is included in your selections. Sections: 2.04.010 Billing period. 2.04.020 Opening and closing bills. 2.04.030 Payment of bills. 2.04.040 Billing of separate connections not combined. 2.04.050 Delinquent accounts – Penalty. 2.04.060 Delinquent accounts – Collection.