The simple National Variation Agreement template is used to effect the NHS Standard Contract National Variation for 2017-19, in accordance with Option 1 in the Guidance on National Variations to existing 2014/15, 2015/16 and 2016/17 full length contracts and 2016/17 shorter-form contracts. It is relevant to commissioners and providers who are parties to an existing commissioning contract the duration of which extends beyond 31 March 2017.