The rules are due to get even tighter when a three-month grace period for some goods expires. read moreReporting by Graham Fahy; Editing by Alison WilliamsOur Standards: The Thomson Reuters Trust Principles. London feels it has gained some moral authority since the European Commission briefly threatened last week to impose emergency controls on vaccines crossing the land border. CUSTOMS BORDERBritain left the EU's single market a month ago with a trade deal that also created a customs border between Britain and Northern Ireland. The issue was arguably the most contentious in Britain's five-year Brexit negotiations, and the search for an arrangement led to the downfall of Prime Minister Boris Johnson's predecessor, Theresa May.
CUSTOMS BORDERBritain left the EU's single market a month ago with a trade deal that also created a customs border between Britain and Northern Ireland.
( z0 border :ARG2 ( z1 border :ARG2 ( z2 country :name ( z3 name :op "Northern" :op "Ireland" ) ) :location ( z4 country :name ( z5 name :op "Britain" ) ) ) :mod ( z6 customs ) :rel ( z7 leave :ARG0 z4 :ARG1 ( z8 market :mod ( z9 single ) :poss ( z10 organization :name ( z11 name :op "EU" ) ) ) :manner ( z12 deal :ARG0-of ( z13 create :ARG1 z0 :mod ( z14 also ) ) :ARG2 ( z15 trade ) ) :time ( z16 before :quant ( z17 temporal-quantity :quant 1 :unit ( z18 month ) ) :op ( z19 now ) ) ) )
(z0 / border-01
    :ARG2 (z1 / border
              :ARG2 (z2 / country
                        :name (z3 / name
                                  :op1 "Northern"
                                  :op2 "Ireland"))
              :location (z4 / country
                            :name (z5 / name
                                      :op1 "Britain")))
    :mod (z6 / customs)
    :rel (z7 / leave-15
             :ARG0 z4
             :ARG1 (z8 / market
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                       :poss (z10 / organization
                                  :name (z11 / name
                                             :op1 "EU")))
             :manner (z12 / deal-01
                          :ARG0-of (z13 / create-01
                                        :ARG1 z0
                                        :mod (z14 / also))
                          :ARG2 (z15 / trade-01))
             :time (z16 / before
                        :quant (z17 / temporal-quantity
                                    :quant 1
                                    :unit (z18 / month))
                        :op1 (z19 / now))))
CUSTOMS BORDERBritain left the EU 's single market a month ago with a trade deal that also created a customs border between Britain and Northern Ireland .
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