Other Retirement Plans

9 Months Ended

Sep. 30, 2014

Multiemployer Plans [Abstract]

Other Retirement Plans

Note 12 – Other Retirement Plans

Multi-Employer Plans. Certain of MasTec’s subsidiaries contribute amounts to multi-employer pension and other multi-employer benefit plans and trusts. Contributions are generally based on fixed amounts per hour per employee for employees covered under these plans. Multi-employer plan contribution rates are determined annually and assessed on a “pay-as-you-go” basis based on union employee payrolls. Union payrolls cannot be determined for future periods because the number of union employees employed at any given time, and the plans in which they may participate, vary depending upon the location and number of ongoing projects at a given time and the need for union resources in connection with those projects.Total contributions to multi-employer plans, and the related number of employees covered by these plans, for the periods indicated ranged as follows:

	Multi-Employer Plans
	Covered Employees		Contributions (in millions)
For the Three Months Ended September 30:	Low	High	Pension		Post-Retirement Benefit		Total
2014	2,029	2,167	$	11.6	$	1.1	$	12.7
2013	2,392	2,734	$	14.9	$	1.0	$	15.9
For the Nine Months Ended September 30:	Low	High	Pension		Post-Retirement Benefit		Total
2014	1,098	2,167	$	27.3	$	2.5	$	29.8
2013	778	2,734	$	30.2	$	3.0	$	33.2