Whenever any provision of Vermont statute or rule or any form provided to any person in this state requires a signature, certification, stamp, verification, affidavit, or other endorsement by a physician, such statute, rule, or form shall be deemed to include a signature, certification, stamp, verification, affidavit, or other endorsement by an advanced practice registered nurse (APRN) licensed pursuant to this chapter and certified as a nurse practitioner or a nurse midwife; provided, however, that nothing in this section shall be construed to expand the scope of practice of APRNs.