Negotiable Instruments Act Article 3
A promissory note is a negotiable instrument signed and issued by the maker engaging themself to pay unconditionally at a fixed future date a sum certain in money to the payee or holder.
中文原文 票據法第3條
稱本票者，謂發票人簽發一定之金額，於指定之到期日，由自己無條件支付與受款人或執票人之票據。