The simple National Variation Agreement template is used to effect the NHS Standard Contract National Variation for 2019/20, in accordance with Option 1 or Option 2 in the Guidance on National Variations to existing 2016/17, 2017-19 (November 2016 edition) 2017-19 (January 2018 edition) and 2017-19 (May 2018) full length contracts and to existing 2016/17, 2017-19 (November 2016 edition), 2017-19 (January 2018 edition) and 2017-19 (May 2018 edition) shorter-form contracts.