(a) The EMS medical director shall assign the prehospital provider under his or her direction to a specific on-line communication resource by a predetermined policy.     
      (b) Specific local protocols shall define the circumstances under which on-line medical direction is required.     
      (c) A physician providing or delegating on-line medical direction ("on-line physician") shall be appropriately trained in the use of prehospital protocols.     
      (d) A physician providing or delegating on-line medical direction shall have personal expertise in the emergency care of ill and injured patients.     
      (e) A physician providing or delegating on-line medical direction for particular patients assumes responsibility for the appropriateness of prehospital care provided under his or her direction by EMS personnel.     
     Source Note:        The provisions of this §197.4 adopted to be effective February 28, 1999, 24 TexReg 1157; amended to be effective September 20, 2007, 32 TexReg 6316