X0303 4/A 2010-06-30 2010-06-30 0 0001075607 TC PIPELINES LP TCLP 0001208353 JENKINS-STARK JACK 717 TEXAS STREET, SUITE #2400 HOUSTON TX 77002 1 0 0 0 Deferred Share Units 2010-06-30 4 A 0 171 40.96 A Common units representing limited p/ship interests 171 5666 D Upon termination of service as a director, Deferred Share Units ("DSUs") recorded in the reporting person's account will be settled, at the reporting person's election, in common units of TC PipeLines, LP ("Common Units") at no additional cost on a 1 for 1 basis or in cash of equivalent value, less applicable withholdings. The DSUs are immediately fully vested and are redeemable only following Mr. Jenkins-Stark's termination of Board service. Mr. Jenkins-Stark elected to have a portion (50%) of his annual retainer paid in the form of DSUs in lieu of cash. The number of DSUs is calculated based on the Fair Market Value of Common Units. Amount of DSUs amended to account for an increase of 6 DSUs to correct a miscalculation of DSUs recorded in Mr. Jenkins-Stark's account. /s/ Tara E. Shaw, Attorney for Jack Jenkins-Stark 2011-07-14