At least 5 business days before shipment, each proprietor of a distilled spirits plant in Puerto Rico who intends to ship denatured spirits to the United States in containers larger than 5 gallons, and each person in Puerto Rico who intends to ship products made with denatured spirits to the United States in containers larger than 5 gallons shall notify the chemist of the Treasury of Puerto Rico of the intent to ship. (Approved by the Office of Management and Budget under control number 1512-0336) [T.D. ATF-199, 50 FR 9198, Mar. 1, 1985, T.D. ATF-199, 50 FR 20099, May 14, 1985]