(d) Delay of notice If the head of an element of the intelligence community that is required to provide notice under subsection (a) determines it is necessary, and in the event of a specific threat to the national security of the United States caused by a national emergency, the head of the element may delay the submittal of such notice by a period not to exceed five days. If the head of an element delays the submittal of such notice under this subsection, the head shall advise the chair and ranking members of the congressional intelligence committees of the activity covered by the notice as soon as possible but not later than 24 hours after the element has commenced the activity. (e) Presidential emergency action document In this section, the term presidential emergency action document means— (1) each of the approximately 56 documents described as presidential emergency action documents in the budget justification materials for the Office of Legal Counsel of the Department of Justice submitted to Congress in support of the budget of the President for fiscal year 2018