(i) the utility has failed to obtain access to the meter(s);

(ii) circumstances beyond the control of the utility made obtaining an actual reading of the meter(s) extremely difficult, despite having access to the meter area; provided, however, that estimated bills for this reason may be rendered no more than twice consecutively without the utility advising the customer in writing of the specific circumstances and the customer's obligation to have the circumstances corrected;

(iii) the utility has good cause for believing that an actual or customer reading obtained is likely to be erroneous; provided, however, that estimated bills for this reason may be rendered no more than twice consecutively without the utility initiating corrective action before the rendering of the next cycle bill;

(iv) circumstances beyond the control of the utility prevented the meter reader from making a premises visit;

(v) an actual reading was lost or destroyed; provided, however, that an estimated bill for this reason shall be rendered no more than once without the utility initiating corrective action before the rendering of the next cycle bill;

(vi) an estimated reading has been prescribed or authorized by the commission for a particular billing cycle;

(vii) an estimated reading is the approved billing method in accordance with the utility's tariff for the billing; or

(viii) an unmetered condition was in existence during the period.

(i) the second consecutive bill estimated pursuant to either subparagraph (b)(1)(i) or (ii) of this section in the case of accounts billed for demand;

(ii) the fourth consecutive bill estimated pursuant to either subparagraph (b)(1)(i) or (ii) of this section in the case of accounts not billed for demand; or

(iii) the 10th consecutive bill estimated pursuant to subparagraph (b)(1)(i) or (ii) of this section or based on a remote registration device or a customer reading.

(i) The first notice shall advise the access controller that unless access to the customer's meter is provided on the next meter reading date, or a special appointment to read the meter is made and kept by the access controller prior to that date, a no-access charge will be added to the access controller's next bill and to every bill thereafter until access to the customer's meter is provided, but that no charge will be imposed if an appointment is arranged and kept. The notice shall advise the access controller that the utility will arrange a special appointment for a reading of the customer's meter if the access controller calls a specified telephone number. Where the access controller is not the customer of the subject account, the notice shall begin by stating that the utility records indicate that the recipient is the party who controls access to the meter of the customer, specifically identified as to address, part supplied, and account number, and that the utility has not been provided access to the customer's meter as required.

(ii) The second notice shall advise the access controller of the no-access charge that has been added to the access controller's bill and that, unless access to the customer's meter is provided on the next meter-reading date or a special appointment to read the meter is made and kept by the access controller prior to that date, another charge will be added to the access controller's next bill. The notice shall further explain that if the access controller's service can be physically terminated without obtaining access, steps to terminate service will follow, and that in the event that the access controller's service cannot be physically terminated, steps to obtain a court order to gain access to the customer's meter will follow. The notice shall advise the access controller that the utility will arrange a special appointment for a reading of the customer's meter if the access controller calls a specified number.

(iii) The third and each successive notice shall advise the access controller of the no- access charge that has been added to the access controller's bill and, if the access controller's service can be terminated without obtaining access, shall be accompanied by a final notice of termination for nonaccess. In any case where the access controller's service cannot be physically terminated without obtaining access, the notice shall advise the access controller that the utility is seeking to obtain a court order to gain access to the customer's meter.