The Europan Mechanics Union, or EMU, is the premier and only Union for Wrench Monkeys and Welding Fuel huffers in the Jovian system. There's no union dues, no form to fill out. Just put up this spiffing poster in your workshop, go on smoko, and tell your Captain to take it up with the Union.
If you're a ballast denizen, if you've ever had your hands torn to shreds by a faulty pump, if you've ever been left to die on a mining expedition, or had to physically fight Security for the last of the Aluminium in the workshop, then you my friend, are EMU.
- Ol' Rusty, Union Chairman