31 C.F.R. § 535.311
Except as defined in § 535.203(f) for the purposes of that section, the terms property and property interest or property interests shall include, but not by way of limitation, money, checks, drafts, bullion, bank deposits, savings accounts, debts, indebtedness, obligations, notes, debentures, stocks, bonds, coupons, any other financial securities, bankers' acceptances, mortgages, pledges, liens or other rights in the nature of security, warehouse receipts, bills of lading, trust receipts, bills of sale, any other evidences of title, ownership or indebtedness, powers of attorney, goods, wares, merchandise, chattels, stocks on hand, ships, goods on ships, real estate mortgages, deeds of trust, vendors' sales agreements, land contracts, real estate and any interest therein, leaseholds, grounds rents, options, negotiable instruments, trade acceptances, royalties, book accounts, accounts payable, judgments, patents, trademarks or copyrights, insurance policies, safe deposit boxes and their contents, annuities, pooling agreements, contracts of any nature whatsoever, and any other property, real, personal, or mixed, tangible or intangible, or interest or interests therein, present, future or contingent.
31 C.F.R. §535.311