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Westport’s Management System Certified to ISO 9001:2008

Vital Certification for Westport as Supplier to Truck OEMs

published: March 4, 2009

Vancouver, BC - Westport Innovations Inc. (TSX:WPT / Nasdaq:WPRT), a global leader in alternative fuel, low-emissions transportation technologies, today announced its quality management system (QMS) has been certified as compliant to International Organization of Standardization (ISO) 9001:2008 standards for the design, assembly and commercialization of Westport’s liquefied natural gas (LNG) fuel systems.

“As an engine and fuel system supplier to large truck manufacturers, ISO certification of our QMS is central to the development of our customer base,” said Michael Gallagher, President and COO of Westport. “This certifies that we have the management systems in place to meet our customers requirements.”

Registration by QMI-SAI Global addresses Westport’s needs, as a Tier 1 automotive supplier, to provide truck original equipment manufacturers (OEMs) with consistent products and support.

ISO 9001:2008 is the international quality certification that defines minimum requirements for a company's quality management system. Westport’s QMS comprises the organization's policies, procedures and other internal requirements that aim to ensure that customer requirements are met with consistency, resulting in enhanced customer confidence and satisfaction.

About Westport Fuel Systems

At Westport Fuel Systems, we are driving innovation to power a cleaner tomorrow. We are inventors, engineers, manufacturers and suppliers of advanced clean-burning fuel systems and components that can change the way the world moves. Our technology delivers performance, fuel efficiency and environmental benefits to address the challenges of global climate change and urban air quality. Headquartered in Vancouver, Canada, we serve our customers in more than 70 countries with leading global transportation brands. At Westport Fuel Systems, we think ahead. For more information, visit www.wfsinc.com.

Cautionary Note Regarding Forward Looking Statements

This document contains forward-looking statements, including statements regarding the demand for our products, the future success of our business and technology strategies, investment, cash and capital requirements, intentions of partners and potential customers, the performance and competitiveness of our products and expansion of product coverage, future market opportunities, speed of adoption of natural gas for transportation, growth in demand as a result of new emission standards and terms of future agreements. These statements are neither promises nor guarantees, but involve known and unknown risks and uncertainties and are based on assumptions that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance or achievements expressed in or implied by these forward looking statements. These risks and assumptions include risks and assumptions related to our revenue growth, operating results, industry and products, the general economy, conditions of and access to the capital and debt markets, governmental policies and regulation, technology innovations, fluctuations in foreign exchange rates, global government stimulus packages, the acceptance of natural gas vehicles in fleet markets, the relaxation or waiver of fuel emission standards, the inability of fleets to access capital or government funding to purchase natural gas vehicles, the sufficiency of bio methane for use in our vehicles, the development of competing technologies as well as other risk factors and assumptions that may affect our actual results, performance or achievements or financial position discussed in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they were made. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward looking statements except as required by National Instrument 51-102.

More Information

Westport Fuel Systems
(Investor Inquiries)

Caroline Sawamoto

Manager, Investor Relations & Communications

T 604-718-2046

invest@wfsinc.com

www.wfsinc.com