Hi pauls1
When you apply for New Style ESA, you are placed in the assessment phase until you have an assessment. The assessment phase lasts for 13 weeks. When you have an assessment you will either be placed in the support group WRAG/LCW group or be found fit for work.
You need to have a look at our WCA guide;
www.benefitsandwork.co.uk/help-for-claimants/esa1 Gary