2024 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2023 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2020 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2018 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2016 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2015 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2014 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2013 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety

2009 Ohio Code 737.021 – Division of traffic engineering and safety in department of public safety