Collective bargaining agreements, we currently have, was a process of negotiations between the carrier and our predecessors at Union Pacific aiming to not only to regulate working salaries but the overall common interest of working employees.
Knowledge is power. Review these agreements. Unfortunately there are too many to list. Register and begin to learn.
Below you will find the SMART Constitution, Standardized Yard and Road Agreements 2018, and the link to the 887 General Committee of Adjustments website, which is underlined, where you can find all the agreements since 1965.