INSIGHTi
The International Emergency Economic
Powers Act (IEEPA) and Tariffs: Historical
Background and Key Issues
June 5, 2019
  On May 30, 2019, President Donald J. Trump 
recently announcedannounced his intention to use 
powers granted to the President under
the the International Emergency Economic Powers Act (IEEPA) (50 U.S.C. §§
 1701 et seq.) to impose 
and
gradually increase a 5% tariff on all goods imported from Mexico 
effective June 10, 2019. The tariff, he said, would gradually increase until "until “the illegal migration crisis is
 alleviated through effective actions taken by Mexico.
” Invoked in response to an “unusual and
" On June 7, 2019, the President stated that the tariffs were "indefinitely suspended" because Mexico had "agreed to take strong measures to ... stem the tide of migration."
  Presidents may invoke IEEPA in response to an "unusual and extraordinary threat, which has its source in whole or substantial part outside the United States
,” no
President has previously used IEEPA to impose tariffs on a specific country. Using IEEPA’s precursor
statute, the Trading with the Enemy Act of 1917 (TWEA), however, President Nixon imposed a 10%
" when a national emergency has been declared with respect to that threat. Using IEEPA, Presidents may regulate imports. Although no President has used IEEPA to impose tariffs, President Nixon imposed a 10% tariff on all imports into the United States in response to a monetary crisis
.
President Nixon’s Emergency Tariff
 using IEEPA's precursor statute, the Trading with the Enemy Act of 1917 (TWEA). 
  President Nixon's Emergency Tariff
  In 1971, the United States was facing a balance-of-payments crisis 
as a resultbecause of the inflexibility of the
 Bretton Woods monetary order, and reform seemed increasingly necessary. 
Several reportsSeveral reports compiled by
 the Nixon Administration suggested a series of reforms that would require key economic partners in
 Europe and Asia to revalue their currencies voluntarily. To
 garner gain negotiating leverage, the reports
 recommended, among other things, suspending gold convertibility and imposing trade restrictions. When
 discussing such options in the Oval Office, Nixon reacted positively to the suggestions, 
commenting, “the
commenting, "the import duty delights me.
”" Under the General Agreement on Tariffs and Trade (GATT), such measures had
 generally been tolerated
 at the time when there were in response to balance-of-payments crises.
  On August 15, 1971, President Nixon issued Proclamation 4074
,, in which 
he declared a national emergency
under TWEA and imposed a 10% ad valorem supplemental duty on all dutiable articles imported into the
 United States. That evening, in a televised address to the nation
, , President Nixon outlined his new
 economic policy, the targets of which were unemployment, inflation, and international speculation. He
 addressed the supplemental duty specifically
:
 
  I am taking one further step to protect the dollar, to improve our balance of payments, and to increase
 jobs for Americans. As a temporary measure, I am today imposing an additional tax of 10% on
Congressional Research Service
https://crsreports.congress.gov
IN11129
CRS INSIGHT
Prepared for Members and
Committees of Congress
 Congressional Research Service
2
 goods imported into the United States. This is a better solution for international trade than direct
 controls on the amount of imports.
  This import tax is a temporary action. It isn't directed against any other country. It is an action to
 make certain that American products will not be at a disadvantage because of unfair exchange rates.
 When the unfair treatment is ended, the import tax will end as well.
  While the tariff was not explicitly 
“"directed against any other country,
”" the Nixon Administration was
 primarily concerned with compelling Japan to negotiate a 24% revaluation of the Japanese yen. 
ThennationalThen-national security council 
chairmanchair Henry Kissinger
’'s staff economist 
describeddescribed the surcharge as 
“a
"a bargaining lever to get other countries to revalue their currencies.
”" Then-Under Secretary of the Treasury
 for Monetary Affairs Paul Volcker, likewise, 
thought, “thought, "the president had been convinced that [the import
 surcharge] was both an essential negotiating tactic and a way to attract public support.
”
"
  Over the next several months, the Administration negotiated with the G-10 to resolve the monetary crisis
 and convince West Germany and Japan to revalue their currencies. On December 18, 1971, speaking from
 the Commons Room at the Smithsonian Institution Building, President Nixon announced the conclusion
 of the Smithsonian Agreement, which he billed as 
“"the most significant monetary agreement in the history
 of the world.
”" Among the provisions were a 16.9% revaluation of the yen. Two days later, 
President
President Nixon removed the supplemental duties
.
.
  In response to the import surcharge, several importers filed suit alleging that Nixon lacked the authority to
 impose the surcharge. The Government argued that it had the authority to impose the import surcharge
 under section 5(b)(1)(B) of TWEA. The United States Court of Customs and Patent Appeals 
held in
held in United States v. Yoshida International that it was 
“"incontestable that [TWEA] does in fact delegate to the
 President, for use during war or during national emergency only, the power to 
‘'regulate importation
’”'" and
 upheld the President
’'s action, in part because it 
“"bore an eminently reasonable relationship to the
 emergency confronted.
”" A year later, the court held the same in another case
.
.
  When testifying before Congress on reforms to TWEA in 1977, Andreas F. Lowenfeld, one of the premier
 practitioners and scholars of international economic law in the United States, spoke disapprovingly about
 President Nixon
’'s actions and said that he found the Court of Customs and Patent Appeals reasoning in
Yoshida “thin.” Yoshida "thin." He recommended, among other things, changing the language of the statute.
 
  Despite Lowenfeld
’'s recommendation, Congress maintained the language of section 5(b)(1)(B) of 
TWEA
TWEA in section 203(a)(1)(B) of 
IEEPAIEEPA. Additionally, Congress gave the President the explicit power to impose
 temporary import surcharges in response to balance-of-payments issues in section 122 of the Trade Act of
1974.
 1974.
  Issues for Congress
  Unlike Nixon
’'s import surcharge, President Trump
’'s proposed tariff would 
behave been subject to the procedures of
 the National Emergencies Act of 1976 (NEA) (50 U.S.C. §§
 1601 et seq.), which requires that the
 President specify
 “ "the provisions of law under which he proposes that he, or other officers, will act.
”" He
 may specify these provisions 
“"either in the declaration of a national emergency, or by one or more
 contemporaneous or subsequent Executive orders.
” IEEPA" IEEPA, however, may only be used 
“"to deal with any
 unusual and extraordinary threat, which has its source in whole or substantial part outside the United
 States, to the national security, foreign policy, or economy of the United States
….”...." The authorities
 granted by IEEPA 
“"may only be exercised to deal with an unusual and extraordinary threat with respect to
 which a national emergency has been declared for purposes of this chapter and may not be exercised for
 any other purpose.
”" Moreover, 
“"[a]ny exercise of such authorities to deal with any new threat shall be
 based on a new declaration of national emergency which must be with respect to such threat.
”
 Congressional Research Service
3
"
  The President did not cite IEEPA in Proclamation 9844, which declared a national emergency at the
 border and some Members of Congress from both parties as well as trade groups have debated 
whether
whether the President may invoke IEEPA in an executive order referencing Proclamation 9844 or whether he will
 need to declare a new national emergency. To date, 
IEEPA has not been invokedno President has invoked IEEPA in an executive order
 issued subsequent to a declaration of national emergency.
  Because IEEPA is subject to the NEA, 
its powersa President may only 
be exercisedexercise its powers with respect to a declared
 national emergency. Should the President 
ultimately decide to invoke IEEPA 
authority to impose a tariff
,
 in the future, Congress may attempt to terminate the national emergency upon which the action is based by 
enacting a
enacting a joint resolution
 of disapproval using the expedited procedures provided by the NEA. 
  
 of disapproval using the expedited procedures provided by the NEA.
Author Information
Christopher A. Casey
Analyst in International Trade and Finance
Disclaimer
This document was prepared by the Congressional Research Service (CRS). CRS serves as nonpartisan shared staff
to congressional committees and Members of Congress. It operates solely at the behest of and under the direction of
Congress. Information in a CRS Report should not be relied upon for purposes other than public understanding of
information that has been provided by CRS to Members of Congress in connection with CRS’s institutional role.
CRS Reports, as a work of the United States Government, are not subject to copyright protection in the United
States. Any CRS Report may be reproduced and distributed in its entirety without permission from CRS. However,
as a CRS Report may include copyrighted images or material from a third party, you may need to obtain the
permission of the copyright holder if you wish to copy or otherwise use copyrighted material.
IN11129 · VERSION 1 · NEW