“Account receivable” means any right to payment for goods sold or leased or for services rendered which is not evidenced by an instrument or chattel paper, whether or not it has been earned by performance. All rights to payment earned or unearned under a charter or other contract involving the use or hire of a vessel and all rights incident to the charter or contract are “accounts receivable.” (CCP 680.130; COMM 9102(a)(2))
Unless another method of levy is provided, to levy upon a receivable the levying officer shall personally serve a copy of the writ and notice of levy on the account debtor. “Account debtor” means a person obligated on an account, chattel paper, or general intangible. The term does not include persons obligated to pay a negotiable instrument, even if the instrument constitutes part of chattel paper. (CCP 680.120 , COMM 9102(a)(3))
If a levy is made by serving the account debtor and payments on the account receivable are made to a person other than the judgment debtor (whether pursuant to a security agreement, assignment for collection, or otherwise), if so instructed by the judgment creditor the levying officer shall personally serve a copy of the writ and a notice of levy on such third person. Such service is a levy on any amounts owed to the judgment debtor by such third person.