A Staff-assisted rate case shall be developed upon the submission of the following documents to the Commission’s Executive Director: A letter requesting development of a staff-assisted rate case; and A completed staff-assisted rate case application for a small sewage disposal company including all necessary attachments or exhibits. Upon receipt of all completed materials listed in §A of this regulation, the Commission’s technical staff shall send the applicant and the Maryland Office of People’s Counsel written notice that the application has been received, and the staff-assisted rate case shall be deemed submitted. If the application is not complete: Technical staff shall give notice to the applicant in writing of any deficiencies; The applicant shall have a reasonable opportunity, not to exceed 90 business days, after receipt of the notice to file information to remedy the indicated deficiencies; and If deficiencies are not resolved in a timely manner, the applicant shall be informed in writing that the application for a staff-assisted rate case has been rejected.