The applicant, the Maryland Office of People’s Counsel, the Commission’s technical staff, and any other interested persons shall engage in negotiations for the purpose of reaching a settlement agreement. If an agreement is reached, it shall be reduced to writing in the form of a stipulation and settlement with such exhibits as are appropriate. A stipulation and settlement derived under §A of this regulation shall be filed with the Commission together with a summary letter from technical staff and the technical staff report. Upon filing as described by §C of this regulation, the stipulation and settlement shall be assigned a case number and treated as any other case which is filed with the Commission. If no agreement is reached under §A of this regulation, the applicant may file a request for a revision of its retail rates under Public Utilities Article, §§4-203(a) and 4-204, Annotated Code of Maryland.