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Peter Ungphakorn @CoppetainPU
, 7 tweets, 4 min read Read on Twitter
“Customs union” is a technical term, @bbcnickrobinson. “Customs arrangement” is not.

A customs union has the same external tariffs on imports from outside the group.

A customs arrangement can be any kind of arrangement involving customs. Could be anything.

Thread 1/7
What is a customs union?

The WTO’s simple definition wto.org/english/thewto…

2/7 GLOSSARY TERM — customs union —Members apply a common external tariff (e.g. the European Union)
Customs unions are defined in Par 8, Art24 of the General Agreement on Tariffs and Trade (GATT, on trade in goods)

wto.org/english/docs_e…

It applies “substantially the same duties and other regulations of commerce … to the trade of territories not included in the union”

3/7 Screenshot of GATT Article 24 (XXIV) paragraph 8
The types and implications of customs unions are discussed at some length here:

uktradeforum.net/2018/01/15/cus…

4/7 Screenshot of the definition in the linked blog post
.@uk_tpo has this little video on “rolling over” EU free trade agreements if the UK has no customs union with the EU

WARNING! Includes “rules of origin”, “diagonal cumulation”

vimeo.com/252854131

5/7
And this @uk_tpo in-depth blog on the same subject

WARNING! Also includes “rules of origin”, “diagonal cumulation”

blogs.sussex.ac.uk/uktpo/2017/09/…

6/7 Screenshot of extract from blog, reference to more than 50 countries with EU FTAs
Finally, how many customs unions are there in the world?

The WTO’s database lists 23 (29 if each of the six EU enlargements are counted separately)

rtais.wto.org/UI/PublicSearc…

Search by criteria & choose: Coverage=goods, Type of agreement=customs union

7/7 Screenshot of database search criteria
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