Versions of See prior versions of a law on LawServer 2024 Indiana Code 16-36-7-28. Advance directive; signature; witnesses; acknowledgement; counterparts; telephonic interaction; validity 2023 Indiana Code 16-36-7-28. Advance directive; signature; witnesses; acknowledgement; counterparts; telephonic interaction; validity 2022 Indiana Code 16-36-7-28. Advance directive; signature; witnesses; acknowledgement; counterparts; telephonic interaction; validity 2021 Indiana Code 16-36-7-28. Advance directive; signature; witnesses; acknowledgement; counterparts; telephonic interaction; validity