PENSIONS

The following table summarizes the components of net postretirement pension expense:



	U.S. Benefit Plan												Non-U.S. Benefit Plan
	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
(in millions)	2017			2016			2017			2016			2017			2016			2017			2016
Service cost	$	—		$	—		$	—		$	—		$	—		$	—		$	0.1		$	0.1
Interest cost	1.8			1.9			5.6			5.8			0.3			0.4			1.0			1.4
Amortization of actuarial loss	0.7			1.4			1.9			4.2			0.2			0.2			0.5			0.5
Expected return on plan assets	(2.4		)	(2.6		)	(7.2		)	(7.8		)	(0.5		)	(0.5		)	(1.5		)	(1.8		)
Net postretirement pension expense	$	0.1		$	0.7		$	0.3		$	2.2		$	—		$	0.1		$	0.1		$	0.2

In the nine months ended September 30, 2017 and 2016, the Company contributed $3.9 million and $5.6 million to its U.S. defined benefit plan, respectively, and $0.7 million and $1.0 million to its non-U.S. defined benefit plan, respectively.

During the remainder of 2017, the Company expects to make additional contributions of up to $1.1 million to the U.S. benefit plan and up to $0.2 million to the non-U.S. benefit plan.

In September 2017, the Company executed an amendment to the Federal Signal Corporation Retirement Plan (“the Plan”), which enabled the Company to announce a limited-time voluntary lump-sum pension offering to eligible, terminated, vested plan participants. The lump-sum settlement payments will be made during the fourth quarter of 2017, using assets from the Plan. In connection with the lump-sum offering, the Company expects to incur a pre-tax, non-cash settlement charge of up to $7 million in the fourth quarter of 2017, when the lump sum settlements are expected to be paid. The Company also anticipates that the lump-sum offering will result in a decrease in the Company’s Long-term pension and other postretirement benefit liabilities, as presented on the Condensed Consolidated Balance Sheet.