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E-3-21, Acronyms and Glossary of Defined Terms: U (05/01/2019)


Uniform Commercial Code


Uniform Electronic Transactions Act

underwriting documents

All of the documentation used to support the lending decision for a mortgage—such as the loan application and other documents used to verify a borrower’s employment, income, deposits, and credit history.

Uniform Commercial Code (UCC)

A comprehensive codification and modernization of commercial law (but excluding law dealing with real property).

Uniform Electronic Transactions Act (UETA)

Any of several state adoptions of an Act that has provisions for the use of electronic signatures and records in interstate commerce that are virtually identical in all material respects to similar provisions of ESIGN.

Uniform Mortgage-Backed Security (UMBS)

A common security issued by the GSEs that is eligible for trading in the To-be-Announced (TBA) market. The securities are backed by fixed-rate loans secured by single-family one-to-four unit properties and are identified by certain pool prefixes.

unit mortgage

A mortgage (or share loan) on an individual residential unit in a planned unit development, condo, or co-op project.

unpaid principal balance (UPB)

The actual balance of the mortgage as of the last paid installment date (also referred to as the “outstanding principal balance”).


unpaid principal balance


Uniform Standards of Professional Appraisal Practice