R.I. Gen. Laws § 39-11-4

Transportation of mail

P.L. 1944, ch. 1500, § 6; G.L. 1956, § 39-11-4.

No certificate shall be required for the transportation of United States mail.

Official source: Rhode Island General Assembly. Reproduced from public-domain Rhode Island statutes; confirm against the official source for the current text. Not legal advice.