This barrier is unrelated to the end of the transition period, following the United Kingdom's departure from the EU.


Pest risk assessments delay UK plant exports to the United States

in United States

Trade barrier summary

This affects UK exports of ornamental plants to the United States. US legislation requires formal import authorisation and pest risk assessments for all food crops, including edible fruit and vegetables. These can cause delays.

For ornamental plants, import may be allowed without pest risk assessment. However, so-called NAPPRA products (not approved pending pest risk analysis) can't be imported into the market before phytosanitary requirements are decided on by the Animal and Plant Health Inspection Service (USDA-APHIS) and included in US import legislation.

This procedure can take several years. For some products, procedures have lasted more than 25 years before market access has been granted. UK exporters have found the added costs can exclude them from the US market.

Sectors affected

  • Agriculture, horticulture, fisheries and pets



Date reported

29 July 2019

Last updated

18 December 2020

Public ID


Back to search results

If a trade barrier is affecting your exports or investment from the UK, please let us know on report a trade barrier .

If you export goods you can check duties and customs procedures for your chosen market.