:term:`CFOUR_NONHF <CFOUR_NONHF (CFOUR)>`
"""""""""""""""""""""""""""""""""""""""""

      Specifies whether the reference function used in the correlation energy calculation satisfies the (spin-orbital) HF equations or not. Usually there is no need to set this parameter (OFF = 0 and ON =1), since standard non-HF reference functions (QRHF and ROHF) set this flag automatically.

      * **Type**: :ref:`boolean <op_c_boolean>`
      * **Default**: false

