This chapter addresses possible Commission allocation of SOS uncollectible costs to CCA customers, per Public Utilities Article, §7-510.3(p), Annotated Code of Maryland. No later than 90 days prior to the date established by the Commission to begin enrollment of customers in a CCA, an electric company shall calculate and file with the Commission the following relating to a transfer of the electric company’s customers from SOS to the CCA: An estimate of the amount of SOS uncollectible expense which would be attributable to all residential and small commercial SOS customers in the county at the start of CCA service. An estimate of the change in the SOS administrative charge or other charges used to recover SOS uncollectible expense based on a range of expected numbers of accounts that would transfer to the CCA from SOS service. A proposed allocation or assignment to the CCA of the estimated SOS uncollectible expense identified in §A of this regulation, which would, if the change in SOS administrative charges materially adversely impacts the cost of providing SOS, mitigate the change in SOS administrative charges identified in §B of this regulation. An electric utility shall propose to the Commission a tariff provision that establishes a means to recover the estimated SOS uncollectible expense proposed in Regulation .01 of this chapter. An electric utility shall propose the recovery of CCA uncollectible expense as part of a discount rate tariff that is used for purchased receivables for a CCA using utility consolidated billing to be recovered over a 12-month period following enrollment of customers in the CCA or as otherwise accepted by the Commission. An electric utility may propose an alternate tariff method of recovery of CCA uncollectible expense for a CCA using other billing methods. Public Utilities Article, §§1–101(b), (f), and (k), 7–306(f)(5) and (h), 7–306.2(d)(3), 7–507(a), 7–510(f) and 7–510.3, Annotated Code of Maryland Effective date: February 5, 2024 (51:2 Md. R. 76)