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Other Current Liabilities
 12 Months Ended
Dec. 31, 2016
Other Current Liabilities [Abstract]  
OTHER CURRENT LIABILITIES

25. OTHER CURRENT LIABILITIES

Other current liabilities consisted of the following:
As atDecember 31December 31
millions of Canadian dollars 20162015
Accrued charges$ 137$ 130
Accrued interest on long-term debt 96 44
Sales and other taxes payable 16 4
Accrued interest on convertible debentures represented by instalment receipts (note 8) - 11
Emission credits obligations (1) 10 6
Other 22 12
$ 281$ 207
(1) Throughout the three-year compliance period associated with the Regional Greenhouse Gas Initiative for carbon dioxide emissions, an obligation is recognized as gas is burned, measured at the cost to acquire credits for the related emissions. Emission credits are capitalized to inventory (note 14) when purchased and subsequently applied against the emission liabilities at the end of each compliance period.