the instrument for transfer of the rights under the instrument by negotiation. However, payment by the party liable to the person previously entitled to enforce the instrument "counts" as payment on the note until adequate notice has been received by the liable party that a different party is to receive payments from then on. [U.C.C. §3-602(b)] Transfer free of equities—the holder in due course can hold better title than the party he obtains it from (as in the instance of negotiation of the instrument from a mere holder to a holder in due course) Negotiation often enables the transferee to become the party to the contract through a contract assignment (provided for explicitly or by operation of law) and to enforce the contract in the transferee-assignee's own name. Negotiation can be effected by endorsement and delivery (order instruments), or by delivery alone (bearer instruments). Classes Promissory notes and bills of exchange are two primary types of negotiable instruments. The following chart shows the main differences: Promissory note Although possibly non-negotiable, a promissory note may be a negotiable instrument if it is an unconditional promise in writing made by one person to another, signed by the maker, engaging to pay on demand to the payee, or at fixed or determinable future time, a sum certain in money, to order or to bearer. The law applicable to the specific instrument will determine whether it is a negotiable instrument or a non-negotiable instrument. Bank notes are frequently referred to as promissory notes, a promissory note made by a bank and payable to bearer on demand. According to section 4 of India's Negotiable Instruments Act, 1881, "a Promissory Note is a writing (not being a bank note or currency note), containing an unconditional undertaking, signed by the maker to pay a certain sum of money only to or to the order of a certain person or the bearer of the instrument". Bill of exchange A bill of exchange or "draft" is a written order by the drawer to the drawee to pay money to the payee. A common type of bill of exchange is the cheque (check in American English), defined as a bill of exchange drawn on a banker and payable on demand. Bills of exchange are used primarily in international trade, and are written orders by one person to his bank to pay the bearer a specific sum on a specific date.