https://abcnews.go.com/Politics/list...0zfpYi7-dQaGvU
 
31 have been annually renewed and are currently still in effect, as listed in the Federal Register. 
President Jimmy Carter
Nov 14, 1979: The National Emergency With Respect to Iran, in response to the Iran hostage crisis.
President Bill Clinton
Nov 14, 1994:  The National Emergency With Respect to the Proliferation of Weapons of  Mass Destruction, that combined two previous national emergencies  focused on weapons of mass destruction.
Jan. 2, 1995: The National Emergency With  Respect to Prohibiting Transactions with Terrorists Who Threaten to  Disrupt the Middle East Peace Process placed economic sanctions in  response to the Jerusalem bombing.
March 15, 1995: The National Emergency With  Respect to Prohibiting Certain Transactions with Respect to the  Development of Iranian Petroleum Resources was an effort to prevent  potential deals between oil companies.
 
October 21, 1995: The National Emergency With  Respect to Blocking Assets and Prohibiting Transactions with Significant  Narcotics Traffickers Centered in Colombia was declared after increased  reports of drug cartels laundering money through American companies.
 
March 1, 1996: The National Emergency With  Respect to Regulations of the Anchorage and Movement of Vessels with  Respect to Cuba was after civilian planes were shot down near Cuba.
 
November 3, 1997: The National Emergency With  Respect to Blocking Sudanese Government Property and Prohibiting  Transactions with Sudan implemented economic and trade sanctions.
 
President George W. Bush
June 26, 2001:  The National Emergency With Respect to Blocking Property of Persons Who  Threaten International Stabilization Efforts in the Western Balkans  imposed sanctions on those aiding Albanian insurgents in Macedonia.
 
Aug 17, 2001: The National Emergency With  Respect to Export Control Regulations renewed presidential power to  control exports in a national emergency since the Export Administration  Act of 1979 lapsed. 
  
Sept 14, 2001: The National Emergency with Respect to Certain Terrorist  Attacks was in response to the terrorist attacks of 9/11 and the  continuing and immediate threat of further attacks on the United States. 
Sept 23, 2001:  The National Emergency With  Respect to Persons who Commit, Threaten to Commit, or Support Terrorism  was in response to the terrorist attacks of 9/11. 
 
March 6, 2003: The National Emergency With  Respect to Blocking Property of Persons Undermining Democratic Processes  or Institutions in Zimbabwe was an effort to punish associates of  Robert Mugabe. 
 
May 22, 2003: The National Emergency With  Respect to Protecting the Development Fund for Iraq and Certain Other  Property in Which Iraq has an Interest was issued following the U.S.  invasion of Iraq. 
 
May 11, 2004: The National Emergency With  Respect to Blocking Property of Certain Persons and Prohibiting the  Export of Certain Goods to Syria was in response to Syria supporting  terrorist activity in Iraq. 
 
June 16, 2006:  The National Emergency With  Respect to Blocking Property of Certain Persons Undermining Democratic  Processes or Institutions in Belarus was in response to charges of fraud  in the Belarus presidential election. 
 
Oct 27, 2006: The National Emergency With  Respect to Blocking Property of Certain Persons Contributing to the  Conflict in the Democratic Republic of the Congo was in response to  violence around the Congolese presidential election runoff. 
 
Aug 1, 2007: The National Emergency With Respect  to Blocking Property of Persons Undermining the Sovereignty of Lebanon  was in response to a breakdown of the rule of law in Lebanon. 
June 26, 2008:  The National Emergency With  Respect to Continuing Certain Restrictions with Respect to North Korea  cited the risk of proliferation of weapons-usable fissile material.   President Trump renewed this June 22, 2018 citing the “existence and  risk of proliferation of weapons-usable fissile material on the Korean  Peninsula and the actions and policies of the Government of North Korea  continue to pose an unusual and extraordinary threat.” 
 
President Barack Obama
April 12, 2010:  The National Emergency With Respect to Blocking Property of Certain  Persons Contributing to the Conflict in Somalia was in respect to  threats posed by Somali pirates.
 
February 25, 2011: The National Emergency With  Respect to Blocking Property and Prohibiting Certain Transactions  Related to Libya froze the assets of Libyan leader Muammar Gaddafi. 
 
July 25, 2011: The National Emergency With  Respect to Blocking Property of Transnational Criminals was in response  to the rise in crime by specific organizations: Los Zetas (Mexico), The  Brothers’ Circle (former Soviet Union countries), the Yakuza (Japan),  and the Camorra (Italy). 
 
May 16, 2012: The National Emergency With  Respect to Blocking Property of Persons Threatening the Peace, Security,  or Stability of Yemen addressed political unrest within the Yemen  government. 
 
March 16, 2014: The National Emergency With  Respect to Blocking Property of Certain Persons Contributing to the  Situation in Ukraine was in response to the Russian invasion of Crimea. 
April 3, 2014:  The National Emergency With  Respect to Blocking Property of Certain Persons With Respect to South  Sudan was in response to the ongoing civil war. 
 
May 12, 2014: The National Emergency With  Respect to Blocking Property of Certain Persons Contributing to the  Conflict in the Central African Republic was in response to violence  towards humanitarian aid workers. 
 
March 8, 2015: The National Emergency With  Respect to Blocking Property and Suspending Entry of Certain Persons  Contributing to the Situation in Venezuela was in response to human  rights violations.
April 1, 2015: The National Emergency With Respect to Blocking the Property of  Certain Persons Engaging in Significant Malicious Cyber-Enabled Activities was in response to Chinese cyber attacks on the U.S. 
 
Nov 23, 2015: The National Emergency With  Respect to Blocking Property of Certain Persons Contributing to the  Situation in Burundi was declared after a failed coup. 
 
President Donald Trump
  
Dec 20, 2017:  The National Emergency With Respect to Blocking the Property of Persons  Involved in Serious Human Rights Abuse or Corruption imposed sanctions  on the Myanmar general for his role persecuting Rohingya Muslims. 
Sept 12, 2018: The National Emergency With  Respect to Imposing Certain Sanctions in the Event of Foreign  Interference in a United States Election attempted to prevent any  meddling with the 2018 midterm elections amid the ongoing investigation  into Russian interference in the 2016 presidential election. 
Nov 27, 2018: The National Emergency With  Respect to Blocking Property of Certain Persons Contributing to the  Situation in Nicaragua was declared by President Trump in response to  violence and the Ortega regime’s “systematic dismantling and undermining  of democratic institutions and the rule of law” that constitutes an  “unusual and extraordinary threat to the national security and foreign  policy of the United States.”