30 days or such lesser period of time which the law enforcement agency determines is reasonably necessary and requests in writing. Such law enforcement agency may, by a subsequent written request, revoke such delay or extend the period of time set forth in the original request made under this paragraph if further delay is necessary. (ii) National security If a Federal national security agency or homeland security agency determines that the notification required under this section would threaten national or homeland security, such notification may be delayed for a period of time which the national security agency or homeland security agency determines is reasonably necessary and requests in writing. A Federal national security agency or homeland security agency may revoke such delay or extend the period of time set forth in the original request made under this paragraph by a subsequent written request if further delay is necessary. (b) Coordination of notification with credit reporting agencies If a covered entity is required to provide notification to more than 5,000 individuals under subsection (a)(1), the covered entity shall also notify the major consumer reporting agencies that compile and maintain files on consumers on a nationwide basis, of the timing and distribution of the notifications. Such notification shall be given to the credit reporting agencies without unreasonable delay and, if such notification will not delay notification to the affected individuals, prior to the distribution of notifications to the affected individuals. (c) Method and content of notification (1) General notification A covered entity required to provide notification to individuals under subsection (a)(1) shall be in compliance with such requirement if the covered entity provides conspicuous and clearly identified notification by one of the following methods (provided the selected method can reasonably be expected to reach the intended individual): (A) Written notification to the last known home mailing address of the individual