What are the 4 types of commercial paper?

As per the Uniform Commercial Code (UCC), commercial papers are of four kinds –

1. Drafts
2. Cheques
3. Promissory Notes
4. Certificate of Deposits

On the basis of Security Commercial Papers are of two types – 

1. Unsecured commercial paper – also known as traditional Papers issued without any collateral.
2. Secured Commercial Paper – also known as Asset-backed commercial papers (ABCP). These are collateralized by other financial assets.

Further Readings – 

1. Types of Cheque in Indian Banking System
2. Chequebook Diplomacy
3. Financial Market