R.I. Gen. Laws § 23-8-2
Whenever it shall be determined by the governor that a voluntary mass immunization program is necessary to protect the health and welfare of the people, he or she may issue a proclamation authorizing the program, and a copy of the proclamation shall be filed in the office of the secretary of state. All individuals or public or private agencies that participate in the authorized mass immunization projects shall not be liable to any person who experiences or purports to experience adverse effects arising from the immunization or attendant procedures; provided, however, that informed consent is obtained. Nothing in this chapter shall exempt from liability for gross negligence any individual or public or private agency participating in an authorized mass immunization project, nor shall the provisions of this chapter exempt any drug manufacturer from any liability, regardless of the degree of negligence for any drug or vaccine used in the projects.
R.I. Gen. Laws § 23-8-2