Non-Corporate Credit is a catch-all term used to include types of bonds

Bond (finance)

In finance, a bond is a debt security, in which the authorized issuer owes the holders a debt and, depending on the terms of the bond, is obliged to pay interest to use and/or to repay the principal at a later date, termed maturity...

 that are forms of credit

Credit (finance)

Credit is the trust which allows one party to provide resources to another party where that second party does not reimburse the first party immediately , but instead arranges either to repay or return those resources at a later date. The resources provided may be financial Credit is the trust...

, but not issued by private corporations - and therefore cannot be considered corporate debt. Non-Corporate Credit generally includes sovereign debt, regional governments and government agencies

Government agency

A government or state agency is a permanent or semi-permanent organization in the machinery of government that is responsible for the oversight and administration of specific functions, such as an intelligence agency. There is a notable variety of agency types...

 in a currency other than other than that of the issuer, and bonds issued by supranational entities.