++++ 1 . ECSC - Production - Steel production and delivery quota system - Adjustment of delivery quotas - Conditions - Exceptional difficulties due to the scale of the abatement rate for a specific category of products - Assessment - Criteria ( Decision No 234/84, Art . 14 ) 2 . ECSC - Production - Steel production and delivery quota system - Adjustment of delivery quotas - Conditions - No authorized aid to cover operating losses - Aid intended to encourage the restructuring of an undertaking - Essential difference ( Decision No 234/84, Art . 14 )