"The Order requires the company to stop unloading pipe across the entire North Corridor Expansion Project and assess this procedure at all of their sites," the regulator said.

The worker suffered a serious, non-fatal injury when unloading a truck at the Bear Canyon stockpile yard when a 36" pipe fell on them, it said.

The NGTL system supplies natural gas produced in the Western Canadian Sedimentary Basin to markets in Canada and the United States.

(Reporting by Kavya Guduru in Bengaluru; Editing by Chris Reese)