Oshkosh Corporation Achieves Prestigious CMMI Level 3 Accreditation

Oshkosh Corporation (NYSE: OSK) announced today that its Corporate Electronics division has achieved the Software Engineering Institute’s (SEI) Capability Maturity Model® Integration for Process Improvement (CMMI) Maturity Level 3 (ML 3) Appraisal rating. The Standard CMMI Appraisal for Process Improvement (SCAMPISM)-A appraisal was completed and Maturity Level 3 was achieved. The SCAMPI-A is the highest level SCAMPI appraisal method. CMMI is a world recognized standard for the development of mission critical software. The Oshkosh Corporate Electronics Division ML 3 certification is the first ever given to a manufacturer of heavy-duty specialty trucks.

CMMI has become a standard for measuring an organization’s capability to provide a process based software development approach to software engineering and project management, while maintaining a focus on continuous process improvement. Many government contracts today require CMMI Maturity Level 3 to participate in the proposal process. This rating will now allow the Corporate Electronics division to develop software for military applications and apply this level of technical sophistication to other Oshkosh Corporation businesses.

“Achieving CMMI Level 3 status is a testament to our continuous improvement process and our software expertise,” said Don Verhoff, Oshkosh Corporation executive vice president, Technology. “This is a very lengthy and thorough process of analyzing literally hundreds of practices and showing direct and physical proof that we are meeting those stringent qualifications.”

Internal software development is an integral component of new product development for Oshkosh Corporation. Over the last decade, Oshkosh has been awarded 22 software patents for vehicle multiplexing (the ability to link multiple message signals or digital data streams into one signal over a shared medium). This latest achievement is just another example of Oshkosh Corporation’s commitment to design and deliver high-quality products and services to its customers.

About Oshkosh Corporation

Oshkosh Corporation is a leading designer, manufacturer and marketer of a broad range of specialty access equipment, commercial, fire & emergency and military vehicles and vehicle bodies. Oshkosh Corp. manufactures, distributes and services products under the brands of Oshkosh®, JLG®, Pierce®, McNeilus®, Medtec®, Jerr-Dan®, BAI®, Oshkosh Specialty Vehicles, Frontline™, SMIT™, Geesink™, Norba™, Kiggen™, CON-E-CO®, London® and IMT®. Oshkosh products are valued worldwide in businesses where high quality, superior performance, rugged reliability and long-term value are paramount.

For more information, log on to www.oshkoshcorporation.com.

• CMMI is a registered trademark of the Carnegie Mellon University
• SCAMPI is a service mark of Carnegie Mellon University

Forward-looking Statements

This press release contains statements that the Company believes are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact, including statements regarding the Company's future financial position, business strategy, targets, projected sales, costs, earnings, capital spending and debt levels, and plans and objectives of management for future operations, are forward-looking statements. When used in this press release, words such as “may,” “should,” "expects," "intends," "estimates," "anticipates," or "believes" and similar expressions are generally intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance and are subject to risks, uncertainties, assumptions and other factors, some of which are beyond the Company's control which could cause actual results to differ materially from those expressed or implied by such forward-looking statements. These factors include the consequences of the Company's financial leverage position, especially given recent turmoil in the credit markets, and the level of associated borrowing costs; the Company’s ability to maintain compliance with financial covenants in its credit agreement; the cyclical nature of the Company's access equipment, commercial and fire & emergency markets, especially during a global economic downturn and credit crisis; the Company’s ability to offset higher steel and raw material costs through other cost decreases or product selling price increases; risks related to reductions in government expenditures and the uncertainty of government contracts; risks associated with international operations and sales, including foreign currency fluctuations; and the Company's ability to turn around its Geesink Norba Group business. Additional information concerning these and other factors is contained in the Company's filings with the Securities and Exchange Commission.