U&O - use and occupancy

UAV - unmanned aerial vehicle

UBI - usage-based insurance

UBIT - unrelated business income tax

UBTI - unrelated business taxable income

UCC - Uniform Commercial Code

UCD - unemployment compensation disability

UCI - unemployment compensation insurance

UCR - usual, customary, reasonable (reimbursement)

UCRA - Unified Carrier Registration Agreement

UEL - upper explosive level

UEP - unearned premium

UEPR - unearned premium reserve

UFTA - Uniform Fraudulent Transfer Act

UIM - underinsured motorist

UIMV - underinsured motor vehicle

UJF - unsatisfied judgment fund

UL - umbrella liability

UL - Underwriters' Laboratories

ULAE - unallocated loss adjustment expense

ULC - Underwriters Laboratories of Canada

UM - uninsured motorists

UMPD - uninsured motorist property damage

UMV - uninsured motor vehicle

UNL - ultimate net loss

UP - unearned premium

UPR - unearned premium reserve

UPS - uninterruptible power system

URL - uniform resource locator

URMIA - University Risk Management & Insurance Association

USDA - U.S. Department of Agriculture

USERRA - Uniformed Services Employment and Reemployment Rights Act of 1994

USGLI - U.S. Government Life Insurance

USITC - U.S. International Trade Commission

USL&HW - United States Longshore and Harbor Workers' (Compensation Act) of 1927

UST - underground storage tank

UTBMS - Uniform Task Based Management System