2024 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2023 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2022 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2019 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2018 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2016 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2014 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway

2011 Texas Government Code 442.027 – State Highway 20 as Texas Historic Highway