SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

12 Months Ended

Sep. 27, 2015

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

TETRA TECH, INC.
SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS AND RESERVES

For the Fiscal Years Ended
September 29, 2013, September 28, 2014 and September 27, 2015
(in thousands)

		Balance at Beginning of Period		Charged to Costs, Expenses and Revenue			Deductions (1)			Other (2)			Balance at End of Period
Allowance for doubtful accounts:
Fiscal 2013			35,552		13,818			(4,452	)		(295	)		44,623
Fiscal 2014			44,623		1,467			(4,855	)		(1,455	)		39,780
Fiscal 2015			39,780		(1,034	)		(5,965	)		(1,291	)		31,490
Income tax valuation allowance:
Fiscal 2013			2,512		4,947			–			–			7,459
Fiscal 2014			7,459		396			–			(279	)		7,576
Fiscal 2015			7,576		4,609			–			(4,394	)		7,791
(1)	Primarily represents uncollectible accounts written off, net of recoveries.
(2)	Includes allowances from new business acquisitions, loss in foreign jurisdictions, and currency adjustments, and represents valuation allowance adjustments related to net operating loss carry-forwards.