19 C.F.R. § 19.35

(a) General. A class 9 warehouse (duty-free store) may be established for exportation of conditionally duty-free merchandise by individuals departing the Customs territory, inclusive of foreign trade zones, by aircraft, vessel, or departing directly by vehicle or on foot to a contiguous country. Such articles must accompany the individual on his person or in the same aircraft, vessel, or vehicle in which the individual departs. “Conditionally duty-free merchandise” means merchandise sold by a duty-free store on which duties and/or internal revenue taxes (where applicable) have not been paid. Except insofar as the provisions of this section and §§ 19.36-19.39 are more specific, the procedures for bonded warehouses apply to duty-free stores (Class 9 warehouses).

(b) Location. A duty-free store (class 9 warehouse) may be established or located only:

(1) Within the same port of entry from which a purchaser of duty-free store merchandise departs the Customs territory;

(2) Within 25 statute miles from the exit point through which a purchaser of duty-free store merchandise departs the Customs territory; or

(3) In the case of an airport store, within any staffed port of entry, or within 25 statute miles from any staffed port of entry.

(c) Integrated locations. A Class 9 warehouse with multiple noncontiguous sales and crib locations (see § 19.37(a) of this part) containing conditionally duty-free merchandise and requested by the proprietor may be treated by Customs as one location if:

(1) The proprietor can provide Customs upon demand with the proper on-hand balance of each inventory item in each storage location, sales room, crib, mobile crib, delivery cart, or other conveyance or noncontiguous location; and

(2) The recordkeeping system is centralized up to the point where a sale is made so as to automatically reduce the sale quantity by location from centralized inventory or inventory records must be updated no less frequently than at the end of each business day to reflect that day's activity.

(d) Exit point. The exit point referred to in paragraph (b) of this section means an area in close proximity to an actual exit for departing from the Customs territory, including the gate holding area in the case of an airport, but only if there is reasonable assurance that conditionally duty-free merchandise delivered in the gate holding area will be exported from the Customs territory. The exit point in the case of a land border or seaport duty-free store is the point at which a departing individual has no practical alternative to continuing on to a foreign country or to returning to Customs territory by passing through a U.S. Customs inspection facility. The port director's decision as to what constitutes the exit point or reasonable assurance of exportation in a given situation is final.

(e) Notice to customers. Class 9 warehouse proprietors shall display in prominent places where they will be noticed and read by customers signs which state clearly that any conditionally duty-free merchandise purchased from the store:

(1) Has not been subjected to any U.S. Federal duty or tax;

(2) If brought back to the United States must be declared and is subject to U.S. Federal duty and tax with personal exemption; and,

(3) Is subject to the customs laws and regulations, including possible duties and taxes, of any foreign country to which it is taken.

(f) Security of sales rooms and cribs. The physical and procedural security requirements of § 19.4(b)(6) of this part shall be applied to the security of the sales rooms and cribs by the port director. The proprietor shall establish procedures to safeguard the merchandise so as to accommodate the movement of purchasers and prospective purchasers of conditionally duty-free merchandise contained in duty-free sales rooms and cribs.

(g) Approval of governmental authority. If a state or local or other governmental authority, incident to its jurisdiction over any airport, seaport, or other exit point facility, requires that a concession or other form of approval be obtained from that authority with respect to the operation of a duty-free store under which merchandise is delivered to or through such facility for exportation, merchandise incident to such operation may not be withdrawn for exportation and transferred to or through such facility unless the operator of the duty-free store demonstrates to the port director that the concession or approval required for the enterprise has been obtained.