 
 National Special Security Events: Fact Sheet
 
National Special Security Events: Fact Sheet 
Updated January 11, 2021 
Congressional Research Service 
https://crsreports.congress.gov 
R43522 
 
  
 
National Special Security Events: Fact Sheet 
 
Introduction 
Major federal government or public events that are considered to be nationally significant may be 
designated by the President—or his representative, the Secretary of the Department of Homeland 
Security (DHS)—as National Special Security Events (NSSE). P.L. 106-544 designated the U.S. 
Secret Service (USSS) as the lead federal agency responsible for coordinating, planning, 
exercising, and implementing security for NSSEs. The January 20, 2021, inauguration of 
President-elect Joseph R. Biden and Vice President-elect Kamala D. Harris has been designated 
an NSSE. The joint session of Congress that met at the U.S. Capitol on January 6, 2021, to open, 
certify, and count the November 2020 presidential election electoral votes was not designated an 
NSSE. 
Legislative Authority and Presidential Directives 
On May 22, 1998, President William J. Clinton issued Presidential Decision Directive 62 (PDD 
62)—Protection Against Unconventional Threats to the Homeland and Americans Overseas.1 
PDD 62 established a framework for federal department and agency counterterrorism programs, 
which addressed terrorist apprehension and prosecution, increased transportation security, 
enhanced emergency response, and enhanced cybersecurity. PDD 62 also designated specific 
federal departments and agencies as the lead agencies in the event of terrorist attacks.2 USSS was 
designated as the lead agency with the leadership role in the planning, implementation, and 
coordination of operational security for events of national significance—as designated by the 
President.3 Other lead agencies for counterterrorism activities included the Federal Emergency 
Management Agency, the Department of Defense, and the Department of Health and Human 
Services. 
On December 19, 2000, Congress enacted P.L. 106-544, the Presidential Threat Protection Act of 
2000, and authorized the USSS—when directed by the President—to plan, coordinate, and 
implement security operations at special events of national significance.4 These special events are 
designated National Special Security Events (NSSEs). Some events categorized as NSSEs include 
the following: 
  presidential inaugurations,  
  major international summits held in the United States,  
  major sporting events, and  
  presidential nominating conventions. 
                                                 
1 PDD 62 was superseded by a classified appendix to Annex II of National Security Presidential Directive 
46/Homeland Security Presidential Directive 15, 
U.S. Strategy and Policy in the War on Terror, on March 6, 2006. The 
appendix maintains USSS responsibility in planning, coordinating, and implementing security operations at NSSEs. 
2 Presidential Decision Directive 62 is classified. The White House issued a fact sheet abstract about it, and the 
Federation of American Scientists has posted an “unclassified abstract” said to be “derived from” PDD 62, available at 
http://www.fas.org/irp/offdocs/pdd-62.htm, October 25, 2007. 
3 U.S. Department of Homeland Security, U.S. Secret Service, Office of Legislative Affairs, “National Special Security 
Events: Meeting the Counter-Terrorism Challenge” (Washington: 2006), p. 1. This document is available to 
congressional clients by contacting the U.S. Secret Service’s Office of Legislative Affairs. 
4 P.L. 106-544, Sec. 3; 114 Stat. 2716. 
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National Special Security Events: Fact Sheet 
 
NSSE Designation 
Prior to the establishment of DHS in January 2003, the President determined what events of 
national significance were designated as NSSEs. Since the establishment of the department, the 
DHS Secretary—as the President’s representative—has had the responsibility to designate 
NSSEs. NSSE designation factors include the following: 
  anticipated attendance by U.S. officials and foreign dignitaries;5 
  size of the event;6 and 
  significance of the event.7 
Recent past NSSEs include President Donald Trump’s 2017 inauguration and the Republican and 
Democratic presidential candidate nominating conventions in 2020.8  
NSSE Security Operations 
When an event is designated an NSSE, USSS becomes the lead federal agency in developing, 
exercising, and implementing security operations. The goal of these security operations is to 
“develop and implement a seamless security plan that will create a safe and secure environment 
for the general public, event participants, Secret Service protectees, and other dignitaries.”9 
The USSS’s Dignitary Protective Division (DPD) is responsible for NSSE planning and 
coordinates with other USSS headquarters and field offices. Some of the coordination includes 
advance planning and liaison for venue and air space security, training, communications, and 
security credentialing.10 Additionally, DPD coordinates and conducts liaisons with other federal, 
state, and local agencies—primarily law enforcement entities. 
NSSE security is planned, exercised, and implemented through a unified command model that is 
comprised of representatives of participating federal, state, and local agencies with NSSE 
responsibilities. During the NSSE’s planning phase, each participating agency is tasked according 
to their expertise or jurisdictional responsibility. USSS states that, “with the support of hundreds 
of federal, state, and local law enforcement and public safety organizations, each of these events 
has successfully concluded without any major incidents.”11 
NSSE operational plans include the use of physical infrastructure security fencing, barricades, 
special access accreditation badges, K-9 teams, and other security technologies. To ensure 
consequence management, DHS pre-positions Domestic Emergency Support Teams, Urban 
                                                 
5 Events attended by U.S. Government officials and foreign dignitaries may require federal interest in ensuring that the 
event is executed without incident and that sufficient resources are available in case of an incident. 
6 A large number of attendees and participants increases security requirements. Additionally, larger events could 
possibly increase terrorist intentions of attempting to attack the event. 
7 Some events have historical, political, and symbolic significance that may heighten the possibility of terrorist attacks, 
http://www.secretservice.gov/nsse.shtml.  
8 USSS security operations were of a smaller scale in 2020 due to the effects of the COVID-19 pandemic on the 
Democratic and Republican nominating conventions. 
9 U.S. Department of Homeland Security, U.S. Secret Service, Office of Legislative Affairs, “National Special Security 
Events: Meeting the Counter-Terrorism Challenge” (Washington: 2006), p. 1. This document is available to 
congressional clients by contacting the U.S. Secret Service’s Office of Legislative Affairs. 
10 Ibid., p. 2. 
11 Ibid. 
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National Special Security Events: Fact Sheet 
 
Search and Rescue Teams, National Emergency Response Teams, Nuclear Incident Response 
Teams, and assets from the Strategic National Stockpile and Mobile Emergency Response 
System. Specific teams and groupings of teams are designed for each event based on coordination 
with other federal entities, state and local jurisdictions, available local resources, and mutual aid 
agreements.12 Additionally, USSS sponsors training seminars for command-level federal, state, 
and local law enforcement and public safety officials to provide principles for managing security 
at major events and strategies for reducing vulnerabilities related to terrorism. The seminars also 
discuss key strategies and lessons learned from past NSSEs.13 
NSSE Funding 
Even though NSSEs have been designated since 1998, Congress has only appropriated funding 
specifically for NSSEs since FY2006. The following table provides the past eight fiscal year 
amounts appropriated for NSSEs since FY2013. 
Table 1.NSSE Appropriations, FY2013-FY2020 
(dollars in millions) 
Fiscal Year 
Appropriation 
2013 
4 
2014 
5 
2015 
5 
2016 
5 
2017 
5 
2018 
5 
2019 
5 
2020 
5 
Source: CRS analysis of enacted FY2013-FY2020 DHS appropriations. 
 
Author Information 
 Shawn Reese 
   
Analyst in Emergency Management and Homeland 
Security Policy     
                                                 
12 U.S. Department of Homeland Security, Office of the Press Secretary, “National Special Security Events Fact 
Sheet,” July 9, 2003. 
13 Ibid. 
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Congressional Research Service  
R43522
 · VERSION 12 · UPDATED 
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