Tetra Tech Awarded $200 Million FAA Navigation Technical Assistance Contract

Tetra Tech, Inc. (NASDAQ:TTEK) announced today that it has been awarded the $200 million Navigation Technical Assistance Contract (NAVTAC) with the Federal Aviation Administration (FAA). Tetra Tech will provide engineering and technical support services for the planning, research, development, implementation, sustainment, and decommissioning of FAA’s navigation, landing, and lighting systems. Tetra Tech will also help the FAA transition to an integrated ground- and space-based navigation systems architecture and will support the FAA’s modernization initiatives, including its Next Generation Air Transportation System (NextGen) effort.

Tetra Tech currently serves as program manager for the FAA Air Traffic Organization’s Information Technology Support Services Contract (ITSSC) and has helped the FAA deploy satellite navigation technologies under NAVTAC predecessor contracts held since 1998. The period of performance for this new, single-award contract is two years, with five one-year option periods. The initial contract award is $70 million; if all options are exercised, the contract value could exceed $200 million.

"The U.S. commercial aviation industry is expected to carry one billion passengers annually by 2021,” said Tetra Tech Chairman and CEO Dan Batrack. "As the number of passengers continues to grow, the FAA faces an increasingly complex challenge in making flight safe, efficient, and cost-effective. Tetra Tech is pleased to support the FAA under the NAVTAC and other contract vehicles.”

About Tetra Tech (www.tetratech.com)

Tetra Tech is a leading provider of consulting, engineering, program management, construction, and technical services addressing the resource management and infrastructure markets. The Company supports government and commercial clients by providing innovative solutions focused on water, the environment, and energy. With approximately 10,000 employees worldwide, Tetra Tech’s capabilities span the entire project life cycle.

Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions ("Future Factors"), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section "Risk Factors" included in the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission.