Customers who are retired or disabled and who receive their only income from retirement, disability and/or Social Security may be exempted from penalties if the due date of their bill falls prior to receipt of their monthly check. To be considered for penalty-exempt status, the customer must make an application at the main office. To retain penalty-exempt status, the customer must pay the full amount of the bill each month without having any charges carried forward to subsequent billings. The customer must establish 9 months of satisfactory payment history prior to being eligible for penalty-exempt status. An exception to this would be those customers who are on the Budget Billing Program and whose budget payments are less than the actual bill for a given month.