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1、unctad.org/ntmPhoto credit:Adobe Stock Czintos dnGuidelines for the Collection of Dataon Official Non-tariff Measures2023 editionPrinted at United Nations,Geneva2322898(E)November 2023 317UNCTAD/DITC/TAB/2023/4United Nations publicationSales No.E.23.II.D.36ISBN 978-92-1-002978-0Guidelines for the Co

2、llection of Dataon Official Non-tariff Measures2023 editionGeneva,2023 2023,United NationsAll rights reserved worldwideRequests to reproduce excerpts or to photocopy should be addressed to the Copyright Clearance Center at .All other queries on rights and licences,including subsidiary rights,should

3、be addressed to:United Nations Publications405 East 42nd StreetNew York,New York 10017United States of AmericaEmail:publicationsun.orgWebsite:https:/shop.un.org/The findings,interpretations and conclusions expressed herein are those of the authors and do not necessarily reflect the views of the Unit

4、ed Nations or its officials or Member States.The designations employed and the presentation of material on any map in this work do not imply the expression of any opinion whatsoever on the part of the United Nations concerning the legal status of any country,territory,city or area or of its authorit

5、ies,or concerning the delimitation of its frontiers or boundaries.Mention of any firm or licensed process does not imply the endorsement of the United Nations.This publication has been edited externally.United Nations publication issued by the United Nations Conference on Trade and DevelopmentUNCTAD

6、/DITC/TAB/2023/4ISBN:978-92-1-002978-0eISBN:978-92-1-358638-9Sales No.E.23.II.D.36Contents1.Introduction and purpose.12.Non-tariff measures:definition and general considerations.23.Steps to collect information.5 3.1.Identify sources of information.6 3.2.Identify regulations from each source.8 3.3.Id