U.S. pipeline regulator reviewing special permits after Keystone oil spills
The U.S. pipeline regulator launched a review this year of its special permits that waive certain operating requirements for pipelines, following a government report into spills on TC Energy's Keystone oil pipeline, a source familiar with the matter said.
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### Instruction: U.S. pipeline regulator reviewing special permits after Keystone oil spills

### Response: The U.S. pipeline regulator launched a review this year of its special permits that waive certain operating requirements for pipelines, following a government report into spills on TC Energy's Keystone oil pipeline, a source familiar with the matter said.