19 U.S.C. § 2092
(b) Procedure when certificate lacking If the consignee of any pre-Columbian monumental or architectural sculpture or mural is unable to present to the customs officer concerned at the time of making entry of such sculpture or mural—
the customs officer concerned shall take the sculpture or mural into customs custody and send it to a bonded warehouse or public store to be held at the risk and expense of the consignee until such certificate or evidence is filed with such officer. If such certificate or evidence is not presented within the 90-day period after the date on which such sculpture or mural is taken into customs custody, or such longer period as may be allowed by the Secretary for good cause shown, the importation of such sculpture or mural into the United States is in violation of this chapter.
(Pub. L. 92–587, title II, § 202, , 86 Stat. 1297.)
References to section 202 of Pub. L. 92–587 in the original were translated as section 2091 of this title in the classification of Pub. L. 92–587 as the probable intent of Congress.