19 CFR § 143.21 - Merchandise eligible for informal entry.
(a) Shipments of merchandise not exceeding $2,500 in value (except for articles valued in excess of $250 classified in Chapter 99, Subchapters III and IV, HTSUS);
(c) A portion of one consignment, when such portion does not exceed $2,500 in value and may be entered separately pursuant to § 141.52 of this chapter. This paragraph does not apply to shipments of articles valued in excess of $250 classified under Chapter 99, Subchapters III and IV, HTSUS;
(d) Household or personal effects or tools of trade entitled to free entry under Chapter 98, Subchapter IV, HTSUS (19 U.S.C. 1202);
(e) Household effects used abroad and personal effects whether or not entitled to free entry, not imported in pursuance of a purchase or agreement for purchase and not intended for sale;
(f) Household and personal effects described in paragraph (e) of this section when entered under subheading 9802.00.40, HTSUS (19 U.S.C. 1202), and the value of the repairs and alterations thereto does not exceed $2,500;
(g) Personal effects not exceeding $2,500 in value of citizens of the United States who have died abroad;
(h) Books and other articles classifiable under subheadings 4903.00.00, 4904.00.00, 4905.91.00, 4905.99.00, 9701.10.00, 9701.90.00, 9810.00.05, HTSUS (19 U.S.C. 1202), imported by a library or other institution described in subheadings 9810.00.05 and 9810.00.30, HTSUS (19 U.S.C. 1202);
(i) Theatrical scenery, properties, and effects, motion-picture films, commercial travelers' samples and professional books, implements, instruments, and tools of trade, occupation, or employment, as set forth in § 10.68 of this chapter;
(j) Merchandise which, upon written application to the Commissioner of CBP, is determined to be unique in character or design such that the value thereof cannot be declared and which is not intended for sale or imported in pursuance of a purchase or agreement for purchase; and
(k) Products of the United States, when the aggregate value of the shipment does not exceed $10,000 and the products are imported -
(1) For the purposes of repair or alteration prior to reexportation, or
(2) After having been either rejected or returned by the foreign purchaser to the United States for credit.