Do you import, export, or transport fireworks? You are obliged to notify this. You must also have the classification code of the fireworks authorised. And you should comply with the European rules on transport of dangerous goods.
You must notify the Human Environment and Transport Inspectorate (ILT, in Dutch) 48 hours before the fireworks:
You may only transport fireworks if the Human Environment and Transport Inspectorate (ILT) has authorised the classification code for the fireworks concerned. In order for this to happen:
You must always register the import, export and distribution of fireworks with ILT.
Dangerous goods must be transported according to the arrangements made in:
ILT offers a Dutch-language checklist for the transport of consumer fireworks.
Please note: The technical requirements that apply in the Netherlands to fireworks differ from those of other EU member states. Do other EU member states already allow a specific type of fireworks? Then the government may only ban the sale in the Netherlands in exceptional cases.
Source: https://business.gov.nl/regulation/transporting-fireworks/