If HMRC apply business continuity plans due to system issues, you must follow normal export declaration rules if you export the following controlled goods from Great Britain:

You need an export licence before exporting controlled military goods, software and technology, or items on the UK dual-use list, from the UK to another country.

These items are listed in Schedules 2 and 3 to the Export Control Order 2008, as amended.

Exports to certain countries

Normal export declaration rules also apply to goods of any type exported from Great Britain to: