FINANCING ARRANGEMENTS

9 Months Ended

Sep. 30, 2016

The following table is a summary of the Company’s financing arrangements (in thousands):



	September 30, 2016			December 31, 2015
Senior unsecured notes, at 5.25%, due August 1, 2020 ("2020 Notes")	$	800,000		$	800,000
Senior unsecured notes, at 5.125%, due June 1, 2021 ("2021 Notes")	845,000			595,000
Long-term obligations, at par	$	1,645,000		$	1,395,000
Unamortized debt issuance costs and premium, net	(12,423		)	(12,457		)
Long-term obligations, at carrying value	$	1,632,577		$	1,382,543

At September 30, 2016 and December 31, 2015, the fair value of the Company's 2020 Notes was $824.0 million and $812.0 million, respectively, based on quoted market prices for the instrument. The fair value of the 2020 Notes is considered a Level 2 measure according to the fair value hierarchy.

On March 14, 2016, the Company issued $250.0 million aggregate principal amount as additional notes under the indenture pursuant to which the Company previously issued on December 7, 2012 $600.0 million aggregate principal amount of 2021 Notes. Interest payments are paid semi-annually on June 1 and December 1 of each year. At September 30, 2016 and December 31, 2015, the fair value of the Company's 2021 Notes was $866.1 million and $599.5 million, respectively, based on quoted market prices for the instrument. The fair value of the 2021 Notes is considered a Level 2 measure according to the fair value hierarchy.

The Company also maintains a revolving credit facility which as of September 30, 2016 and December 31, 2015, had no outstanding loan balances. At September 30, 2016, $201.4 million was available to borrow and outstanding letters of credit were $142.0 million. At December 31, 2015, $178.5 million was available to borrow and outstanding letters of credit were $144.6 million.

The revolving credit facility is guaranteed by all of Clean Harbors, Inc.'s ("Parent's") domestic subsidiaries and secured by substantially all of the Parent’s and its domestic subsidiaries’ assets. Available credit for Parent and its domestic subsidiaries is generally limited to 85% of their eligible accounts receivable and 100% of their cash deposited in a controlled account with the agent. Available credit for Parent’s Canadian subsidiaries is generally limited to 85% of their eligible accounts receivable and 100% of their cash deposited in a controlled account with the agent’s Canadian affiliate. The obligations of the Canadian subsidiaries under the revolving credit facility are guaranteed by all of Parent’s Canadian subsidiaries and secured by the accounts receivable of the Canadian subsidiaries, but the Canadian subsidiaries do not guarantee and are not otherwise responsible for the obligations of Parent or its domestic subsidiaries.

On November 1, 2016, the Company entered into an amended and restated credit agreement for its revolving credit facility. Under the amended and restated agreement, the terms are substantially the same as under the prior agreement, but the facility termination date has been extended, subject to certain conditions, until November 1, 2021.