R.I. Gen. Laws § 4-6.1-4: Coloring of milk not meeting standards.

The director has authority in case of a discovery of violation of the provisions of chapters 4 — 7 of this title, specially to treat so as to prominently identify, by the use of vegetable coloring matter, any and all milk found by him or her produced under conditions constituting a violation or violations of the provisions of chapters 4 — 7 of this title.