This regulation does not apply to residential SOS before the service periods specified in §C of this regulation. A utility may deny residential SOS under COMAR 20.50.04.01-2 or the utility's tariffs. A utility shall provide residential SOS for the following specified time periods: Baltimore Gas and Electric Company from July 1, 2006 through May 31, 2010; Delmarva Power & Light Company from July 1, 2004 through May 31, 2008; Potomac Electric Power Company from July 1, 2004 through May 31, 2008; The Potomac Edison Company doing business as (d/b/a) Allegheny Power from January 1, 2009 through December 31, 2012. Extension of SOS. The Commission may extend a utility obligation to provide SOS under Public Utilities Article, §7-510(c)(3), Annotated Code of Maryland. This regulation does not apply to electric supply service provided by a utility prior to the service periods specified in §§B and C of this regulation. Type I—Small Commercial Customer. A utility shall provide Type I SOS to a customer for the following specified time periods: Baltimore Gas and Electric Company from July 1, 2004 through May 31, 2008; Delmarva Power & Light Company from June 1, 2004 through May 31, 2008; Potomac Electric Power Company from July 1, 2004 through May 31, 2008; and The Potomac Edison Company doing business as (d/b/a) Allegheny Power from January 1, 2005 through December 31, 2008. A utility shall offer Type I SOS as ordered by the Commission to all small commercial customer classes. Type II—Commercial Customer. A utility shall offer Type II SOS to a commercial customer as defined under COMAR 20.52.01.02B(11). A utility shall provide Type II SOS to customers for the following specified time periods: Baltimore Gas and Electric Company from July 1, 2004 through May 31, 2006; Delmarva Power & Light Company from June 1, 2004 through May 31, 2006; Potomac Electric Power Company from July 1, 2004 through May 31, 2006; and The Potomac Edison Company doing business as (d/b/a) Allegheny Power from January 1, 2005 through December 31, 2006. Extension of SOS. The Commission may extend a utility obligation to provide SOS under Public Utilities Article, §7-510(c)(3), Annotated Code of Maryland. This regulation does not apply to electric supply service provided by a utility before the service periods stated in §B of this regulation. A utility shall provide Type III large customer service to customers for the following specified time periods: Baltimore Gas and Electric Company from July 1, 2004 through May 31, 2005; Delmarva Power & Light Company from June 1, 2004 through May 31, 2005; Potomac Electric Power Company from July 1, 2004 through May 31, 2005; and The Potomac Edison Company doing business as (d/b/a) Allegheny Power from January 1, 2005 through December 31, 2005. A utility shall offer hourly priced nonresidential electric supply service to all nonresidential customers ineligible for Type I or Type II SOS, excluding special generation contract customers. A utility shall provide hourly priced service beginning with the time periods provided for Type III service in Regulation .03 of this chapter. A utility may not change or alter tariff rules, terms, and conditions for HPS under §B of this regulation for a period of at least 2 years. The rate for HPS shall include: One of the following: The PJM hourly LMP for energy; or If PJM alters its pricing methods, the nearest equivalent to LMP; Charges associated with PJM capacity obligation; FERC-approved: Transmission rates; Ancillary services; Energy losses; Administrative costs; Any other FERC approved or PJM charges and costs directly related to the utilities' hourly priced service; Costs required to meet statutory renewable requirements; Any other price elements directly related to the service as approved by the Commission; Taxes; An applicable administrative charge intended to recover the utility's verifiable and prudently incurred costs; and A Commission-approved reasonable return. For periods other than those identified in Regulations .01—.03 of this chapter, the Commission may authorize the provision of SOS, default service, Type II service, Type III service, or electric supply provider of last resort service to the customer classes described in this chapter. Public Utilities Article, §§2-113, 2-121, 5-101, and 7-510, Annotated Code of Maryland Effective date: June 7, 2004 (31:11 Md. R. 857)