G/VAL/W/ 389 
 
6 February 2024  
(24-0954) Page: 1/7 
Committee on Customs Valuation    
 
SIXTH REVIEW OF THE AGREEMENT ON PRESHIPMENT INSPECTION  
REPORT  BY THE SECRETARIAT1 
As agreed at the meeting of the Committee on Customs Valuation on 15  November  2023, the 
Secretariat was requested to prepare a  factual report  to assist Members in considering matters  
relating to preshipment inspection (PSI)  during  the Sixth Review of the WTO Agreement on 
Preshipment Inspection (PSI Agreement). This report  outlines the structure  of the PSI Agreement,  
summarizes  prior reviews, contains  information from Member notifications  and other sources 
regarding the use of PSI  programmes , and provides information relating to  the Independent Entity , 
which was  established to address disputes between PSI entities and exporters.  
 
1  STRUCTURE OF THE PSI AGREEMENT  
1.1.  Preshipment inspection is the practice of employing specialized private entities to check 
shipment details (such as the quality, quantity, price, or customs classification) of imported goods. 
Under the PSI  Agreement, user Members – those  contracting for or mandating the use of PSI 
activities  – are subject to several obligations  under Article 2 , including those relating to 
non-discrimination, transparency, protection of confidential business information, avoidance of 
unreasonable delays, t he use of specific guidelines for conducting price verification, and the 
avoidance of conflicts of interest by PSI entities.  
1.2.  The obligations of exporting Members under Article 3 include non -discrimination in the 
application of domestic laws and regulation s relating to PSI activities, prompt publication of such 
laws and regulations, and the provision of technical assistance where requested on mutually agreed 
terms.  
1.3.  The PSI Agreement also provides for a mechanism  called the Independent Entity  to conduct 
reviews of  disputes between PSI entities and exporters  (Article 4 ) and prescribes certain notification 
requirement s (Article 5)  and periodic review by Members  (Article 6) .  
2  TRIENNIAL REVIEWS OF THE PSI AGREEMENT  
2.1.  Article 6 of the PSI Agreement provides that:  
 "At the end of the second year from the date of entry into force of the WTO  Agreement and 
every three years thereafter, the Ministerial Conference shall review the provisions, 
implementation and operation of this Agreement, taking into account the objecti ves thereof and 
experience gained in its operation. As a result of such review, the Ministerial Conference may 
amend the provisions of the Agreement."  
2.2.  In November 1996, the General Council agreed to establish a Working  Party under the 
Council  for Trade in Goods to conduct the First Review  under Article 6 of the PSI  Agreement. 
The Working Party met during four formal meetings in 1997 and proceeded with its review along a 
four-track process. First, the Chair held informal consultations with Membe rs. Second, Members 
provided submissions regarding their national experiences. Third, a survey was compiled on the 
basis of a questionnaire provided to Members. Fourth, Members exchanged views on the following 
issues: (i)  price verification; (ii)  confident iality of business information ; (iii) non-discriminatory 
 
1 This document has been prepared under the Secretariat's own responsibility and without prejudice to 
the positions of Members or to their rights and obligations under the WTO.  G/VAL/W/ 389 
 
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  application of inspection criteria ; (iv) transparency ; (v) delays ; (vi) on-site representation of PSI 
entities ; (vii) operation of the Independent Entity; (viii)  conflicts of interest; (ix) notificat ions; and 
(x) technical assistance. In a report provided to the General Council in December 1997 ( G/L/214 ), 
the Working Party made seven recommendations to enhance implementation of the PSI  Agreement. 
The term of the Working Party was extended to allow for additio nal exchanges of views on various 
issues.  
2.3.  In reports to the General Council in November 1998 ( G/L/273 ) and March 1999 ( G/L/300 ), the 
Working Party indicated that it held four formal meetings to exchange views on the following 
additional issues: (i)  Code of Conduct/Practice  for PSI entities, (ii) a standard inspection format; 
(iii) selective examination of shipments; (iv) auditing of PSI entities; (v)  the promotion of 
competition among PSI entities; (vi) fee structure for PSI entities; (vii)  the use of price data bases; 
(viii) trade facilitation; and (ix) technical  assistance. During  informal meetings, the views of various 
international organizations and associations were heard. The Working Party made several 
recommendations based on its review, including that " future monitor ing of the Agreement should be 
undertaken initially by the Committee on Customs Valuation (the Committee), and that PSI should 
be a standing agenda item."  
2.4.  The Second Review  was held during the meeting of the Committee on Customs Valuation in 
October 2006.  The Chair reported to the General Council in December 2006 ( G/L/809 ) that no 
submissions were received from Members in advance of the review and that two Members made 
statements at the meeting on the importance of continuing to monitor PSI activities.  
2.5.  The Third Review  was held during th e meeting of the Committee on Customs Valuation in 
October 2014. The Chair reported to the General Council in November 2014 ( G/L/1081 ) that no 
Member had provided either written submissions or oral statements during the review.  
2.6.  The Fourth Review  was held during the meeting of the Committee on Customs Valuation in 
November 2017. The Chair reported to the General Council in May 2018 ( G/L/1236 ) that no Member 
provided written submissions in advance of that meeting. Although the review was suspended in 
order to consider a proposal advanced by one Member at the meeting, the proposal was later 
withdrawn, and the review was concluded at the meeting held in April 2018.  
2.7.  The Fifth Review  was launched at  the meeting of the Committee on Customs Valuation in 
October 2020 and conclud ed in October 2021. The Chair reported to the General Council in 
October  2021 (G/L/1409 ) that he had offered to hold consultations and invited Members to provide 
written submissions. No written submissions were received  but certain  Members made statements 
that w ere reflected in the minutes of the meetings ( G/VAL/M/70 , G/VAL/M/71 , and G/VAL/M/72 ). 
2.8.  The Sixth Review  was launched during the last meeting of the Committee on Customs Valuation 
in November 2023.  
3  NOTIFICATIONS AND OTHER SOURCES OF INFORMATION REGARDING THE  USE OF 
PRESHIPMENT INSPECTION  
3.1.  Article 5 of the PSI Agreement provides that:  
"Members shall submit to the Secretariat copies of the laws and regulations by which they put 
this Agreement into force, as well as copies of any other laws and regulations relating to 
preshipment inspection, when the WTO Agreement enters into force with r espect to the 
Member concerned. No changes in the laws and regulations relating to preshipment inspection 
shall be enforced before such changes have been officially published. They shall be notified to 
the Secretariat immediately after their publication. T he Secretariat shall inform the Members 
of the availability of this information."  
 
3.2.  Information pertaining to notifications from Members pursuant to Article 5 of the 
PSI Agreement is regularly issued in the document series G/PSI/N/1 , which lists Member 
notifica tions in four categories: (i) laws and regulations putting the PSI Agreement into force; 
(ii) other laws and regulations relating to PSI; (iii) changes in laws and regulations relating to PSI; 
and (iv) Members notifying that they have no laws or regulation s relating to PSI. Annex  I contains 
information compiled in a format to allow Members to easily review that information, particularly in G/VAL/W/ 389 
 
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  instances where they have provided multiple notifications listed under different category headings.2 
Members may wish to review this information to ensure that it is accurate and complete, and to 
inform the Secretariat regarding any possible corrections or comments.  
3.3.  Moreover, Members may recall  that the Agreement on Trade Facilitation (TFA) also contains 
certain obli gations pertaining to PSI. Specifically, Article 10.5.1 of the TFA provides that Members 
shall not require the use of PSI in relation to tariff classification and customs valuation. Article  10.5.2 
of the TFA recognizes the right to use types of PSI other t han in relation to tariff classification and 
customs valuation but encourages Members not to introduce or apply new requirements regarding 
their use. Dates for the implementation of these specific provisions by Members may be found at 
https://tfadatabase.org/implementation . 
3.4.  In addition, Members are provided with certain information by an association  representing PSI 
entities  which lists  countries that engage the services  of those entities .3 Such information has been  
provided prior to each formal meeting of the Committee on Customs Valuation in the document 
series G/VAL/W/63 . As of 2023, this association has stated  that it no longer has any PSI programmes 
to report as gover ned by the PSI Agreement  (G/VAL/W/63/Rev.31 ). 
4  INDEPENDENT ENTITY  
4.1.  Article 4 of the PSI Agreement governs the creation and operation of the Independent Entity, 
a mechanism to conduct reviews of  disputes between PSI entities and exporters  in cases involving 
an alleged violat ion of the Agreement, where the internal appeals procedure of  the PSI entity has 
not resolved the dispute. Procedures in Article 4 relate to the initiation of disputes, the composition 
of review panels, the scope of review, and various other matters, inclu ding those relating to voting, 
timing of reviews, costs, and the binding nature of panel decisions.  
4.2.  The Independent Entity was established through an agreement between the  WTO, the 
International Federation of Inspection Agencies (IFIA), and the Internation al Chamber of Commerce 
(ICC), and was adopted by the General Council in December 1995 ( WT/L/125/Rev.1 ). The 
Independent Entity is a subsidiary body of the Council on Trade in Goods. Pursuant to Article  4(b) 
of the PSI Agreement, a list of experts for  independent review panels was established and circulated 
to Members in March 1996 ( G/PSI/IE/1 ).4 The Independent Entity commenced operations in May 
1996 ( G/PSI/IE/2 ). 
4.3.  Since  its inception, the Independent Entity has received  two requests for review arising from  
disputes between an exporter and a PSI entity, both of which resulted in panel decisions that were 
issued in October  2005 (G/PSI/IE/R/1 ) and October 2006 (G/PSI/IE/R/2 ), respectively . 
4.4.  In February 2023, the Independent External Auditor issued  a performance audit report that 
contained a recommendation regarding the Independent Entity as follows:  
"RECOMMENDATION No. 1. Close the support fund of the Independent Entity - Pre-Shipment 
Inspec tion, inactive since 2006, and terminate the agreement that created it because it is no 
longer needed. " (WT/BFA/W/622 , pp. 18-19) 
4.5.   Pursuant to the arrangements for the operation of the Independent Entity ( WT/L/125/Rev.1 ), 
exporters and PSI entities are required to provide , prior to the initiation of a review,  an advance 
deposit in the amount of CHF 17,500 to cover estimated costs  of the review . Several  PSI entities 
agreed to provide this advance deposit on a standing basis, resulting in a present account amounting 
to CHF 88,000  (WT/BFA/W/622 , pp. 14 and 41) . This is the "support fund" to which the Independent 
External Auditor refers in its report . In addition, in  December 2023, the Secretariat was conta cted 
by a PSI entity that stated that it no longer engaged in PSI activities and that it was requesting a 
refund of its deposited amount of CHF 17,500.  
 
2 Annex II lists for each Member the type of notification(s) received, if any, a nd the document symbol 
and date of the first communication circulated by the Secretariat regarding that notification.  
3 This association, previously known as the International Federation of Inspection Agencies (IFIA), 
changed its name to TIC Council in 201 9. (See also para. 4.2) . 
4 The list of experts was updated once in April 1997 ( G/PSI/IE/1/Rev.1 ). G/VAL/W/ 389 
 
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  4.6.  As part of the Sixth Triennial Review, M embers may wish to consider what action to take in 
response to  the recommendation of the Independent External Auditor.  
_______________  
 
 
  G/VAL/W/ 389 
 
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  ANNEX I 
Member  Notification Type  Document Symbol  Date 
Afghanistan  4. No PSI laws/regs  G/PSI/N/1/Rev.3/Ad d.1  11/06/2018  
Albania  2. Laws/regs re PSI  G/PSI/N/1/Add.11   24/06/2008  
Angola  4. No PSI laws/regs  G/PSI/N/1/Rev.3/Ad d.2  21/12/2018  
Antigua and Barbuda        
Argentina  3. Changes to PSI laws/regs  
1. PSI in force  G/PSI/N/1/Add.9   
G/PSI /N/1/Add.7   21/03/2001  
24/02/1998  
Armenia  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Australia  4. No PSI laws/regs  G/PSI/N/1/Add.7   24/02/1998  
Bahrain, Kingdom of  4. No PSI laws/regs  G/PSI/N/1/Add.6   06/06/1997  
Bangladesh  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Barbados        
Belize     
Benin  2. Laws/regs re PSI  G/PSI/N/1/Add.5   03/02/1997  
Bolivia, Plurinational State of  3. Changes to PSI laws/regs  
2. Laws/regs re PSI  G/PSI/N/1/Add.8   
G/PSI/N/1/Add.5   28/09/1999  
03/02/1997  
Botswana  4. No PSI laws/regs  G/PSI/N/1/Rev.5/Add.1   14/10/2021  
Brazil  4. No PSI laws/regs  
1. PSI in force  G/PSI/N/1/Rev.3/Ad d.2  
G/PSI/N/1/Add.5    21/12/2018  
03/02/1997  
Brunei Darussalam  4. No PSI laws/regs  G/PSI/N/1/Add.5  03/02/1997  
Burkina Faso  2. Laws/regs re PSI  G/PSI/N/1/Add.5   03/02/1997  
Burundi  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Cabo Verde     
Cambodia  4. No PSI laws/regs  G/PSI/N/1/Add.12   26/04/2010  
Cameroon     
Canada  4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
Central African Rep.  2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Rev.4/Add.6   
G/PSI/N/1/Add.12   14/01/2021  
26/04/2010  
Chad 4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.9   
G/PSI /N/1/Add.8   21/03/2001  
28/09/1999  
Chile 4. No PSI laws/regs  G/PSI/N/1   31/03/1995  
China  1. PSI in force  G/PSI/N/1/Rev.4/Add.1   23/10/2019  
Colombia  2. Laws/regs re PSI  G/PSI/N/1/Add.2   26/07/1995  
Congo  2. Laws/regs re PSI  G/PSI/N/1/Rev.2/Add.1   31/03/2015  
Costa Rica  4. No PSI laws/regs  G/PSI/N/1/Add.1   08/06/1995  
Côte d'Ivoire  2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Add.7   
G/PSI/N/1/Add.4   24/02/1998  
09/10/1996  
Cuba 4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
Dem. Rep. of Congo  2. Laws/regs re PSI  G/PSI/N/1/Add.11   24/06/2008  
Djibouti     
Dominica  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.10   
G/PSI/N/1/Add.8   19/07/2004  
28/09/1999  
Dominican Republic  4. No PSI laws/regs  G/PSI/N/1/Add.15   27/06/2011  
Ecuador  1. PSI in force  G/PSI/N/1/Add.8   28/09/1999  
Egypt  2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Rev.4/Ad d.4  
G/PSI/N/1/Rev.3/Add.3   25/09/2020  
29/05/2019  
El Salvador  4. No PSI laws/regs  G/PSI/N/1/Add.6   06/06/1997  
Eswatini     
European Union  2. Laws/regs re PSI  
1. PSI in force  G/PSI/N/1/Add.10   
G/PSI/ N/1  19/07/2004  
31/03/1995  
Fiji 4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.8   
G/PSI /N/1/Add.6   28/09/1999  
06/06/1997  
Gabon  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
The Gambia  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Rev.1/Add.4   
G/PSI/N/1/Add.14   01/05/2014  
11/01/2011  
Georgia  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Ghana  3. Changes to PSI laws/regs  
2. Laws/regs re PSI  G/PSI/N/1/Add.8   
G/PSI/N/1/Add.4   28/09/1999  
09/10/1996  
Grenada  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Guatemala  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.10   
G/PSI/N/1/Add.9   19/07/2004  
21/03/2001  
Guinea  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Guinea -Bissau     
Guyana  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Haiti 2. Laws/regs re PSI  G/PSI/N/1/Add.8   28/09/1999  
Honduras  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  G/VAL/W/ 389 
 
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  Member  Notification Type  Document Symbol  Date 
Hong Kong, China  4. No PSI laws/regs  G/PSI/N/1   31/03/1995  
Iceland  4. No PSI laws/regs  G/PSI/N/1/Add.4   09/10/1996  
India 2. Laws/regs re PSI  G/PSI/N/1/Add.4   09/10/1996  
Indonesia  3. Changes to PSI laws/regs  
2. Laws/regs re PSI  G/PSI/N/1/Add.6   
G/PSI /N/1/Add.1   06/06/1997  
08/06/1995  
Israel  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  
Jamaica  2. Laws/regs re PSI  G/PSI/N/1/Add.4   09/10/1996  
Japan  2. Laws/regs re PSI  G/PSI/N/1   31/03/1995  
Jordan  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.11   
G/PSI/N/1/Add.9   24/06/2008  
21/03/2001  
Kazakhstan  4. No PSI laws/regs  G/PSI/N/1/Rev.2/Ad d.3  03/10/2016  
Kenya     
Korea, Republic of  2. Laws/regs re PSI  G/PSI/N/1/Add.8   28/09/1999  
Kuwait, the State of  2. Laws/regs re PSI  G/PSI/N/1/Add.7   24/02/1998  
Kyrgyz Republic  4. No PSI laws/regs  G/PSI/N/1/Add.9   21/03/2001  
Lao, People's Democratic 
Republic  4. No PSI laws/regs  G/PSI/N/1/Rev.1/Ad d.2  16/07/2013  
Lesotho  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Rev.1/Ad d.1  
G/PSI/N/1/Add.12   06/05/2013  
26/04/2010  
Liberia     
Liechtenstein  1. PSI in force  G/PSI/N/1/Add.7   24/02/1998  
Macao, China  4. No PSI laws/regs  G/PSI/N/1/Rev.1   11/10/2012  
Madagascar  2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Add.8   
G/PSI /N/1/Add.4   28/09/1999  
09/10/1996  
Malawi  4. No PSI laws/regs  G/PSI/N/1/Rev.2/Ad d.2  05/06/2015  
Malaysia  4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
Maldives  4. No PSI laws/regs  G/PSI/N/1/Add.8   28/09/1999  
Mali 2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Rev.1/Add.1   
G/PSI/N/1/Add.7   06/05/2013  
24/02/1998  
Mauritania     
Mauritius  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Mexico  2. Laws/regs re PSI  G/PSI/N/1/Add.8   28/09/1999  
Moldova, Rep. of  1. PSI in force  G/PSI/N/1/Add.10   19/07/2004  
Mongolia  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.8   
G/PSI /N/1/Add.7   28/09/1999  
24/02/1998  
Montenegro  4. No PSI laws/regs  G/PSI/N/1/Rev.4/Add.5   11/12/2020  
Morocco     
Mozambique  2. Laws/regs re PSI  G/PSI/N/1/Add.11   24/06/2008  
Myanmar  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Namibia  4. No PSI laws/regs  G/PSI/N/1/Add.6   06/06/1997  
Nepal     
New Zealand  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  
Nicaragua  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.13   
G/PSI/N/1/Add.4   22/09/2010  
09/10/1996  
Niger  4. No PSI laws/regs  
3. Changes to PSI laws/regs  
2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Rev.5/Add.3   
G/PSI/N/1/Add.8   
G/PSI /N/1/Add.7   
G/PSI/N/1/Add.5   24/03/2023  
28/09/1999  
24/02/1998  
03/02/1997  
Nigeria  2. Laws/regs re PSI  G/PSI/N/1/Add.7   24/02/1998  
North Macedonia     
Norway  4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
Oman  4. No PSI laws/regs  
4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.12   
G/PSI/N/1/Add.10   
G/PSI/N/1/Add.9   26/04/2010  
19/07/2004  
21/03/2001  
Pakistan  2. Laws/regs re PSI  G/PSI/N/1/Add.1   08/06/1995  
Panama  4. No PSI laws/regs  G/PSI/N/1/Add.8   28/09/1999  
Papua New Guinea  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Paraguay  2. Laws/regs re PSI  G/PSI/N/1/Add.6   06/06/1997  
Peru 3. Changes to PSI laws/regs  
3. Changes to PSI laws/regs  
2. Laws/regs re PSI  
2. Laws/regs re PSI  G/PSI/N/1/Add.10   
G/PSI/N/1/Add.7   
G/PSI /N/1/Add.6   
G/PSI/N/1/Add.3   19/07/2004  
24/02/1998  
06/06/1997  
12/07/1996  
Philippines  2. Laws/regs re PSI  G/PSI/N/1/Add.4   09/10/1996  
Qatar  4. No PSI laws/regs  G/PSI/N/1/Add.8   28/09/1999  
Russian Federation  2. Laws/regs re PSI  G/PSI/N/1/Rev.1   11/10/2012  
Rwanda     
Saint Kitts and Nevis  4. No PSI laws/regs  G/PSI/N/1/Add.8   28/09/1999  
Saint Lucia  1. PSI in force  G/PSI/N/1/Rev.3/Add.4   16/10/2019  G/VAL/W/ 389 
 
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  Member  Notification Type  Document Symbol  Date 
4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
Saint Vincent & the 
Grenadines     
Samoa  4. No PSI laws/regs  G/PSI/N/1/Rev.1/Ad d.3  18/07/2013  
Saudi Arabia, Kingdom of  4. No PSI laws/regs  G/PSI/N/1/Add.11   24/06/2008  
Senegal  2. Laws/regs re PSI  G/PSI/N/1/Add.4   09/10/1996  
Seychelles  4. No PSI laws/regs  G/PSI/N/1/Rev.4/Ad d.3  21/09/2020  
Sierra Leone     
Singapore  4. No PSI laws/regs  G/PSI/N/1/Add.2   26/07/1995  
Solomon Islands     
South Africa  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  
Sri Lanka  4. No PSI laws/regs  G/PSI/N/1/Add.10   19/07/2004  
Suriname  2. Laws/regs re PSI  
4. No PSI laws/regs  G/PSI/N/1/Add.8   
G/PSI/N/1/Add.3   28/09/1999  
12/07/1996  
Switzerland  1. PSI in force  G/PSI/N/1/Add.2   26/07/1995  
Chinese Taipei  2. Laws/regs re PSI  G/PSI/N/1 /Add.10   19/07/2004  
Tajikistan     
Tanzania     
Thailand  4. No PSI laws/regs  G/PSI/N/1/Add.17   04/06/2012  
Togo 4. No PSI laws/regs  G/PSI/N/1/Add.16   23/03/2012  
Tonga  4. No PSI laws/regs  G/PSI/N/1/Rev.4/Add.2   15/06/2020  
Trinidad and Tobago  4. No PSI laws/regs  
4. No PSI laws/regs  G/PSI/N/1/Add.11   
G/PSI/N/1/Add.8   24/06/2008  
28/09/1999  
Tunisia  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  
Türkiye  2. Laws/regs re PSI  G/PSI/N/1/Add.7   24/02/1998  
Uganda  2. Laws/regs re PSI  G/PSI/N/1/Add.4   09/10/1996  
Ukraine     
United Arab Emirates  4. No PSI laws/regs  G/PSI/N/1/Add.5   03/02/1997  
United Kingdom  4. No PSI laws/regs  G/PSI/N/1/Rev.5/Ad d.2  21/10/2022  
United States of America  4. No PSI laws/regs  G/PSI/N/1/Add.4   09/10/1996  
Uruguay  1. PSI in force  G/PSI/N/1/Add.4   09/10/1996  
Vanuatu  4. No PSI laws/regs  G/PSI/N/1/Rev.2/Add.3   03/10/2016  
Venezuela, Bol. Rep. of  2. Laws/regs re PSI  G/PSI/N/1/Add.10   19/07/2004  
Viet Nam  4. No PSI laws/regs  G/PSI/N/1/Rev.6   01/11/2023  
Yemen     
Zambia  4. No PSI laws/regs  G/PSI/N/1/Add.10    19/07/2004  
Zimbabwe  4. No PSI laws/regs  G/PSI/N/1/Add.3   12/07/1996  
 
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