The effective date of rates applied for in a rate application shall be 30 days from the date of the filing of the rate application with the Commission and shall be specified in the rate application. The Commission's staff may recommend the suspension of the effective date of the rates under review. At any time during a rate review, the Commission may order a suspension of the effective date of the rates under review, within the time specifications of Health-General Article, §19-219, Annotated Code of Maryland, and shall state the grounds for its action.