"‘Standing’ means to stand
      upright with at least one biological foot on the ground with or without
      suitable
      aids and appliances (note – a prosthesis is considered an appliance, so a
      claimant with a unilateral
      prosthetic leg may be able to stand, whereas a bilateral lower limb
      amputee would be unable to stand under this definition)."
    
    
    In other words, if you have two artificial legs you should say you cannot
    stand at all, however bizarre this seems.
    
    
    
    
    
    
     Last updated October 2015