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Effective July 1, 2016, TransCanada Corporation acquired Columbia Pipeline Group, Inc., and eventually this website will be retired. TransCanada does not take responsibility for the content of this website as information may be out of date or no longer accurate. Please visit, or contact TransCanada Media Relations or Investor Relations.

As part of the website retirement process, be aware that some key Columbia content may have migrated to TransCanada’s corporate website,, or elsewhere; please check below and adjust any bookmarks accordingly:

Previous Columbia content New (or other) location
Vendor/supplier registration Contractor/Vendor Registration