Dating to the 2nd century CE, the inscription provides valuable insights into the economic and political structure of the city and the wider Roman Empire.

[2][3] Historian John Matthews described the tariff as "one of the most important single items of evidence for the economic life of any part of the Roman Empire".

These tariff rates were established to regulate trade and generate essential revenue for the city.

The detailed information on specific tariffs offers a comprehensive view of the economic activities that contributed to Palmyra's prosperity.

[5] The inscription also enumerates the names of officials responsible for overseeing trade matters.