R.I. Gen. Laws § 47-2-10: Produce scales in markets.

Every retail food business which has a produce department and provides a scale for customers to weigh their purchases shall provide a written notice adjacent to the scale which notifies the customers that the weight registered on the scale is approximate and the scales are not certified by the sealer of weights and measures. Provided, further, that this section does not apply to roadside farm stands and farmers’ markets.