14-1-5.2. Age restrictions for children. – (a) Children under ten (10) years of age shall not be left home alone.

State of Rhode Island (PDF):

14-1-5.2. Age restrictions for children. – (a) Children under ten (10) years of age shall not be left home alone.
(b) Children at least ten (10) years of age and not more than twelve (12) years of age shall be allowed to stay home alone for brief periods of time, but not after 9:00 pm.

(c) Children over twelve (12) years of age may be left home alone, but not overnight.
(d) Parents and legal guardians should use their judgment to access the maturity and responsibility of their children and to discuss safety procedures and precautions before deciding whether to leave their child(ren) home alone.