Tony Clark, Commissioner of the Federal Energy Regulatory Commission, has announced that he will leave the agency following its meeting on September 15.
Clark announced he was leaving FERC earlier this year when his term officially ended June 30. However, FERC rules allow commissioners to serve until the end of the calendar year or a successor is appointed.
"Since June 30 I've been serving in an expired term and had previously announced I wouldn't request reappointment," Clark said in a statement. "Public service has been an honor, but these aren't meant to be forever jobs. Looking forward to the next chapter, whatever that may be."
Clark was nominated by President Barack Obama in June 2012 to fill a seat vacated by Commissioner Marc Spitzer. Clark had previously served as a senior member of the North Dakota Public Service Commission, and was a past president of the National Association of Regulatory Utility Commissioners.
Clark's resignation will leave two vacancies on the commission as Obama has yet to name a replacement for Phillip Moeller, who left FERC last October.
Clark's departure is the latest in a series of changes at the five-member regulatory agency.
Commissioner Norman C. Bay became FERC chairman last April under terms of a compromise that had ensured Senate confirmation of his nomination to the commission last year. Bay, a Democrat, succeeded Chairman Cheryl LaFleur, also a Democrat, who stepped down from the leadership post but retains her commission seat under Bay's leadership.
Last December, the Senate confirmed Obama's nomination of Arkansas utility regulator Colette Honorable, a Democrat, to fill the remainder of the term of Commissioner John Norris who announced his resignation in August. Honorable is to serve until June 2017.
The sole remaining Republican on the panel had been Clark, though his resignation leaves the commission with three Democrats.
No more than three members of the same party may serve on the five-member commission, meaning Obama must nominate -- and the Senate must confirm -- a pair of Republican replacements.
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