The governor may make and publish all necessary rules and regulations and issue such orders as may be necessary for the organization, discipline, government, training, and use of the militia of the state and they shall have the force and effect of law.
Rules and regulations
R.I. Gen. Laws § 30-2-3., under Chapter 30-2 Organization and Command of Military and Naval Forces.
R.I. Gen. Laws § 30-2-3.