The State Department's approval includes a sum of up to $8.5 billion (i.e. just over PLN 30 billion) according to DSCA's announcement. However, the real amount may be lower – for example, Poland purchased 4 Patriot sets in the first phase of the programme Vistula in 2018 for $4.75 billion, and the maximum notified amount was set at $10.5 billion.