Versions of See prior versions of a law on LawServer 2024 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2023 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2022 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2019 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2018 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2016 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2014 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2011 Texas Health and Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2009 Texas Health And Safety Code 166.040 – Patient Certification and Prerequisites for Complying With Directive 2008 Texas Health and Safety Code 166.040 – Patient Certification And Prerequisites For Complying With Directive