R.I. Gen. Laws § 21-22-1: False representation as cider vinegar.

No person shall by himself or herself, his or her servant or agent, or as the servant or agent of any other person, sell, exchange, or have in his or her custody or possession, with intent to sell or exchange, or expose or offer for sale or exchange, any adulterated vinegar, or label, brand, or sell as cider vinegar any vinegar not made exclusively from apple cider.