2023 Washington Code 36.57.120 – Rail fixed guideway public transportation system — Safety program plan and security and emergency preparedness plan

2022 Washington Code 36.57.120 – Rail fixed guideway public transportation system–Safety program plan and security and emergency preparedness plan

2020 Washington Code 36.57.120 – Rail fixed guideway public transportation system — Safety program plan and security and emergency preparedness plan

2019 Washington Code 36.57.120 – Rail fixed guideway public transportation system — Safety program plan and security and emergency preparedness plan

2018 Washington Code 36.57.120 – Rail fixed guideway public transportation system — Safety program plan and security and emergency preparedness plan

2016 Washington Code 36.57.120 – Rail fixed guideway public transportation system–Safety program plan and security and emergency preparedness plan

2015 Washington Code 36.57.120 – Rail fixed guideway system–Safety program plan and security and emergency preparedness plan

2014 Washington Code 36.57.120 – Rail fixed guideway system — Safety program plan and security and emergency preparedness plan

2013 Washington Code 36.57.120 – Rail fixed guideway system — Safety program plan and security and emergency preparedness plan

2009 Washington Code 36.57.120 – Rail fixed guideway system — Safety program plan and security and emergency preparedness plan