2023 Missouri Laws 226.800 – Marking national historic trails with approved signs — donations

2022 Missouri Laws 226.800 – Marking national historic trails with approved signs — donations.

2020 Missouri Laws 226.800 – Marking national historic trails with approved signs — donations.

2018 Missouri Laws 226.800 – Marking national historic trails with approved signs — donations.

2016 Missouri Laws 226.800 – Marking national historic trails with approved signs–donations

2015 Missouri Laws 226.800 – Marking national historic trails with approved signs–donations

2014 Missouri Laws 226.800 – Marking national historic trails with approved signs–donations

2013 Missouri Laws 226.800 – Marking national historic trails with approved signs–donations

2009 Missouri Laws 226.800 – Marking national historic trails with approved signs–donations