a) When there are national security concerns
A Designated Approving Authority (DAA) may waive certification requirements, particularly in the context of information security and systems certification, when there are national security concerns. This is done to address critical security needs and mitigate potential risks, although such waivers are typically granted with great caution and under specific circumstances. The other options (b, c, d) do not generally apply to the decision to waive certification requirements by a DAA.
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