19 CFR §141.111

1. (a)When required. Except where release is made directly to the carrier in accordance with § 141.11(b), no merchandise shall be released from Customs custody until a release order has been executed by the carrier, or, in the case of merchandise in a bonded warehouse, by the warehouse proprietor.
2. (b)Form of release. The release order may be executed on any of the following documents:
   1. (1)[Reserved]
   2. (2)The official entry form;
   3. (3)A combined carrier's certificate and release order issued in accordance with § 141.11(a)(4); or
   4. (4)If a certified duplicate bill of lading or air waybill is used for entry purposes in accordance with § 141.11(a)(3), the carrier's release order may be endorsed thereon in substantially the following form:
3. (c)Blanket release order. Merchandise may be released to the person named in the bill of lading or air waybill in the absence of a specific release order from the carrier, if the carrier concerned has filed a blanket order authorizing release to the owner or consignee in such cases. A carrier's certificate in the form shown in § 141.11(a)(4), may be modified and executed to make it a blanket release order for the shipments covered by a blanket carrier's release order under § 141.11(a)(5).
4. (d)Qualified release order. In the case of merchandise which is entered for warehousing, for transportation in bond, for exportation, or is to be admitted to a foreign trade zone, the release order may be qualified as follows:
   1. (1)“For transfer to the bonded warehouse designated in the warehouse entry,” if the merchandise is entered for warehousing;
   2. (2)“For transfer to the bonded carrier designated in the transportation entry,” if the merchandise is entered for transportation in bond;
   3. (3)“For transfer to the carrier designated in the export entry,” if the merchandise is entered for exportation; or
   4. (4)“For transfer to the foreign trade zone designated in Customs Form 214,” if the merchandise is to be admitted to a foreign trade zone.