1) Con Ed watchdog 2) Polar stratospheric clouds 3) Public Service Commission 4) Utilities regulatory agcy 5) Utilities watchdog group 6) Utilities watchdog grp 7) Utility regulator Found on https://www.crosswordclues.com/clue/psc
[British Army] PSC stands for passed staff college. These are the initials which appear in the service lists denoting that a British, Bangladeshi, Indian, Sri Lankan or Pakistani Army officer has attended the Staff College, Camberley or Defence Services Command & Staff College (DSCSC), Bangladesh. or Defence Services Staff College, Wellingt... Found on http://en.wikipedia.org/wiki/Psc_(British_Army)