Except as otherwise provided in this act, the review of an application for credentialing commenced prior to the effective date of this act shall be governed by the provisions of this act which apply to that part of the review of such application which was not completed prior to the effective date of this act. The secretary shall authorize an original application for credentialing filed prior to the effective date of this act, to be amended to address the standards and criteria established under this act. Nothing in this section shall be construed to require the filing of a new application with the secretary.