Submission of Plans. The architect or professional engineer of record shall submit stamped and sealed final construction drawings to the Department. The architect or professional engineer of record shall submit a letter certifying that the project has been designed in accordance with all applicable federal, State, and local codes, laws, ordinances, and regulations for construction. Plan Approval. A system of water supply, plumbing, sewerage, electrical power, garbage or refuse disposal may not be installed or extended until the architect or professional engineer of record submits stamped and sealed final construction drawings for Department record and provisional approval in accordance with §A of this regulation. The architect or professional engineer of record shall also submit a letter certifying that the project has been designed in accordance with all applicable federal, State, and local codes, laws, ordinances, and regulations. New Construction. A new nursing home shall satisfy the review of the Maryland Health Care Commission for the: Establishment of a new nursing home; and Increase or decrease in capacity of an existing nursing home. After obtaining approval by the Maryland Health Care Commission, the nursing home shall provide written verification of the approval to the Office of Health Care Quality. Verification shall include: Details of the proposed nursing home changes; and Written plans that describe how all residents, staff, and the general public will be kept safe for the duration of the project. Conversion, Alteration, and Additions. An existing nursing home that wishes to convert, alter, modify, or add to the existing infrastructure shall notify the Office of Health Care Quality in writing. The nursing home shall provide the Office of Health Care Quality with the documentation that verifies that the applicable local and State governmental authorities have approved work that was done. The nursing home shall provide additional information upon request.