Narrative:

Aircraft X requested to maintain his own terrain and obstruction clearance and a turn in higher terrain. I cleared him as requested and he turned into higher terrain below the minimum vectoring altitude (MVA). I was advised by management that my phraseology was incorrect and I needed to verify the pilot wanted a VFR climb before approving the turn. I recommend briefings on requirements for this type of scenario.

Google
 

Original NASA ASRS Text

Title: Controller reported being told he misapplied a rule for climbing aircraft below the Minimum Vectoring Altitude.

Narrative: Aircraft X requested to maintain his own terrain and obstruction clearance and a turn in higher terrain. I cleared him as requested and he turned into higher terrain below the Minimum Vectoring Altitude (MVA). I was advised by management that my phraseology was incorrect and I needed to verify the pilot wanted a VFR climb before approving the turn. I recommend briefings on requirements for this type of scenario.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.