Versions of See prior versions of a law on LawServer 2023 Oregon Statutes 431A.050 – Oregon Health Authority to develop comprehensive emergency medical services and trauma system 2021 Oregon Statutes 431A.050 – Oregon Health Authority to develop comprehensive emergency medical services and trauma system 2019 Oregon Statutes 431A.050 – Oregon Health Authority to develop comprehensive emergency medical services and trauma system 2017 Oregon Statutes 431A.050 – Oregon Health Authority to develop comprehensive emergency medical services and trauma system 2015 Oregon Statutes 431A.050 – Oregon Health Authority to develop comprehensive emergency medical services and trauma system