The following table presents our participation in these plans (dollars in thousands):



	Pension Plan Employer Identification Number	Pension Protection Act (“PPA”) Certified Zone Status¹		FIP / RP Status Pending / Implemented²	Contributions						Surcharge Imposed	Expiration Date of Collective Bargaining Agreement³
Pension Trust Fund	Pension Plan Employer Identification Number	2016	2015	FIP / RP Status Pending / Implemented²	2016		2015		2014		Surcharge Imposed	Expiration Date of Collective Bargaining Agreement³
Locals 302 and 612 IUOE-Employers Construction Industry Retirement Plan	91-6028571	Green	Green	No	$	3,113	$	3,000	$	3,043	No	12/31/2017 5/31/2018 12/31/2019
Pension Trust Fund for Operating Engineers Pension Plan	94-6090764	Red	Red	Yes	9,266		9,070		9,590		No	5/15/2017 6/30/2017 1/31/2018 6/30/2019 6/15/2020 6/30/2020 9/30/2020
Operating Engineers Pension Trust Fund	95-6032478	Red	Red	Yes	5,357		3,647		3,001		No	6/30/2019
Laborers Pension Trust Fund for Northern California	94-6277608	Yellow	Yellow	Yes	2,215		2,403		2,682		No	6/30/2019
Construction Laborers Pension Trust for Southern California	43-6159056	Green	Green	No	2,095		1,349		1,258		No	6/30/2018
Laborers Pension Fund	36-2514514	Green	Green	No	2,328		1,919		2,230		No	5/31/2017
All other funds (39 as of December 31, 2016)					8,708		7,171		7,618
			Total Contributions:		$	33,082	$	28,559	$	29,422

¹The most recent PPA zone status available in 2016 and 2015 is for the plan’s year-end during 2015 and 2014, respectively. The zone status is based on information that we received from the plan and is certified by the plan’s actuary. Among other factors, plans in the red zone are generally less than 65 percent funded, plans in the orange zone are less than 80 percent funded and have an Accumulated Funding Deficiency in the current year or projected into the next six years, plans in the yellow zone are less than 80 percent funded, and plans in the green zone are at least 80 percent funded.

²The “FIP/RP Status Pending/Implemented” column indicates plans for which a financial improvement plan (“FIP”) or a rehabilitation plan (“RP”) is either pending or has been implemented.

³Lists the expiration date(s) of the collective-bargaining agreement(s) to which the plans are subject. Pension trust funds with a range of expiration dates have various collective bargaining agreements.