Versions of Texas Tax Code Chapter 171 > Subchapter M - Tax Credit for Certain Research and Development Activities on LawServer 2024 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities 2023 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities 2022 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities 2019 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities 2018 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities 2016 Texas Tax Code Chapter 171 > Subchapter M – Tax Credit for Certain Research and Development Activities