Versions of Tennessee Code 67-1-109 - Revenue and letter rulings on LawServer 2024 Tennessee Code 67-1-109 – Revenue and letter rulings 2023 Tennessee Code 67-1-109 – Revenue and letter rulings 2021 Tennessee Code 67-1-109 – Revenue and Letter Rulings 2020 Tennessee Code 67-1-109 – Revenue and Letter Rulings 2019 Tennessee Code 67-1-109 – Revenue and letter rulings 2010 Tennessee Code 67-1-109. Revenue and letter rulings