MMO-131-12 Welding Training MMO-131-12 Welding Training Maintenance Return to Contract Database Overview View Document Download MMO-131-12 Welding Training MMO, Maintenance Return to Contract Database Related Documents October 11, 2025 MOU – Residual Vacancies – Clerk Craft – 2021-2024 CBA October 11, 2025 2021-2023 Hollingsworth CBA October 11, 2025 2021-2024 NTFT CBA MOU