The smartphone maker says its devices have undergone successful testing in the Defence Department labs to win approval.
BlackBerry launched its Z10 smartphone in the U.S. earlier this year. The Q10 version with the popular physical keyboard was made available this week in Canada.
BlackBerry is expected to release the Q10 in the crucial U.S. market later this month, although a date hasn't been announced.
Security has continued to be a major selling point for BlackBerry devices even as the company has seen its market share eaten up by rival Android-powered smartphones and Apple's iPhone.
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