Article 3 of the defines the types of negotiable instruments and the parties for each. Uniform Commercial Code Uniform Code for Commercial Paper Uniform Commerce Code Uniform Codes Question 2 There are how many categories of negotiable instruments? Two - promises to pay and orders to pay 1. Four - orders to pay, drafts, checks and promissory notes 1. Three - promises to pay, orders to pay, and checks 1. Five - promises to pay, certificate deposits, drafts, checks, and orders to pay