Free
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About
USW 4543 is the official mobile application of the United SteelWorkers, Local 4543. It provides USW 4543 members with a tool to connect with their union and stay on top of major events, learn about their rights in the workplace, download their contracts, and more.
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What's New in USW 4543
2.6.3
September 11, 2026
• Add support for event check-in feature • Minor bug fixes and performance improvements
