Defined in the UCC as a record or records that evidence both a monetary obligation and a security interest in specific goods, a security interest in specific goods and software used in the goods, a security interest in specific goods and license of software used in the goods, a lease of specific goods, or a lease of specific goods and license of software used in the goods. In this paragraph, "monetary obligation" means a monetary obligation secured by the goods or owed under a lease of the goods and includes a monetary obligation with respect to software used in the goods. The term does not include charters or other contracts involving the use or hire of a vessel or records that evidence a right to payment arising out of the use of a credit or charge card or information contained on or for use with the card. If a transaction is evidenced by records that include an instrument or series of instruments, the group of records taken together constitutes chattel paper.

(UCC § 9-102(a)(11).)

Chattel paper is an asset type over which an entity can grant a security interest under Article 9 of the UCC. For more information on security interests in chattel paper, see Practice Note, UCC Creation, Perfection, and Priority of Security Interests.