Missed opportunity preferential rate versus substantiating for correct use
Preference code
In the customs declaration a code is used to identify if a Preferential rate is used or not. Below an overview of the codes. Basically 100 means the general Tariff is applied.

Example Dutch XML Import declaration

Here the code is 300 showing that a Preferential Tariff is applied. The following elements are relevant in this regard.
- The Commodity code: i.e. 2710124190 (TSP concatenated with TRC)

2. The origin

3. The available origin type of document.

