Instruct the aircraft if runway environment not in sight, execute a missed approach if previously given; or climb to or maintain a specified altitude and fly a specified course whenever the completion of a safe approach is questionable because one or more of the following conditions exists. The conditions in subparagraphs a, b, and c do not apply after the aircraft passes decision height on a PAR approach.
NOTE: If the pilot requests, approval may be granted to proceed with the approach via ILS or another navigational aid/approach aid.