In 2017, the English Language Proficiency (ELP) Standards Committee, Arizona English Learner (EL) practitioners in partnership with the Office of English Language Acquisition Services (OELAS), began revising the 2010 ELP Standards. They developed Standards and Performance Indicators for grade/grade-bands K, 1, 2-3, 4-5, 6-8, and 9- 12. The 10 ELP Standards are consistent K-12 and are organized by Mode of Communication (Receptive, Productive, Interactive) with two standards dedicated to Language (one of which is Grammar).