What does VEI stand for?

Value Engineered Indicator (NG)

Value Engineering Incentive - Office of Federal Procurement Policy

Vehicle End Item (NASA)

Velomith - NCIC firearms make code (NCIC)

Vista Energy Resources - AMEX symbol (SPSG)

Visual Exposure Indicator - Advanced photo system

Volcanic Explosivity Index - Measure of amounts of gas and ash that reach the atmosphere

Volcano Explosivity Index (SAUS)