Versions of Oregon Statutes 329.451 - High school diploma; modified diploma; extended diploma; certificate of attendance; grade level advancement on LawServer 2023 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; certificate of attendance; grade level advancement 2021 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement 2019 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement 2017 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement 2015 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement 2013 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement 2009 Oregon Statutes 329.451 – High school diploma; modified diploma; extended diploma; alternative certificate; grade level advancement