A diplomatic mission or the diplomatic personnel is the direct payer of record where payment is made by the holder of such card or other proper documentation or by the diplomatic mission to which the holder is attached, if any, or from the mission's funds, directly to the vendor.
Diplomatic missions and diplomatic personnel must personally issue a certificate of sales tax exemption for diplomatic missions and personnel to the vendor and must allow the vendor to compare the information on the issuer's tax exemption card to the information on the certificate presented. See section 532.4 of this Title regarding use of exemption certificates and purchaser's and vendor's liabilities.
Example 1:A foreign government tourist or travel office which furnishes in formation, booklets, pamphlets, etc., about its country and/or acts as a full service travel agency (booking reservations on transportation and accommodations) is not exempt from sales and use taxes, unless so determined by the United States Department of State.
Example 2:A foreign government-owned steamship line or airline is generally not exempt from the sales and use taxes on its purchases, unless so determined by the United States Department of State, but may otherwise qualify for the exemptions for commercial vessels and commercial airlines provided for by section 1115 of the Sales Tax Law.
N.Y. Comp. Codes R. & Regs. Tit. 20 § 529.5