HARRISBURG — Gov. Tom Corbett has nominated Pamela Witmer to replace Tyrone Christy of Renfrew as a member of the state Public Utility Commission.

Witmer’s nomination must be confirmed by the state Senate and should take a few weeks to complete.

Christy said today he appreciates the four years he has spent as a commissioner.

“I was given a fantastic opportunity when Gov. (Ed) Rendell appointed me to the PUC,” he said. “I am a registered Democrat and Gov. Corbett is a Republican, so I expected this when my term ran out.”

Christy, who has spent most of his professional career in the private sector, said it’s time to get back there.