Lockheed Martin celebrated 11 million safe work hours Thursday.
The Hanford subcontractor has not had a lost work day due to injury since Feb. 28, 1998, according to the company.
Employees of Lockheed Martin and its subcontractors, including field engineers and bargaining unit employees, contributed to the safety achievement.
Since September 1996, Lockheed Martin has provided information resource management services at the Hanford nuclear reservation.
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