The new customs regulations have been causing headaches from companies operating through or with Britain.
Midlands businesses affected by Brexit are being encouraged to sign up to new online customs supports.
Since January 1st, companies trading either with or through Great Britain are subject to a range of new customs formalities.
The 'Clear Customs' programme is being rolled out to offer virtual training for staff on how to effectively complete a customs declaration and avoid the challenges.
162 businesses in Laois, Offaly and Westmeath have already signed up for the course, which is run by the Department of Further Education and Skillnet Ireland.