Upper Explosive Limit
Upper Flammable Limit
Ultra High Frequency. (300-3000 MHz) The apparatus using these frequencies are the best one for internal communications on steel ships as they are not hampered by steel bulkheads.
Ultra High Pressure
United Kingdom Mutual
United Kingdom Association of Private Terminal Operators
UK Harbour Masters Association
UK Major Ports Group
UK Pilots Association (Marine).
Unit Logistics Management System
Urgent Marine Information Broadcast
Reserve Unit Management Information System
1.Unattended Machinery Space,2.Universal Measurement System.
To cast off or untie. (See BEND.)
United Nations Convention on the Law Of the Sea
United Nations Conference on Trade and Development