Modelling such emission reductions with AERIS allowed assessing compliance for the 126 air quality management zones of Spain (exclud- ing the Canary Islands)2 for the hourly and annual LVs for NO2 and for the daily and annual LVs for PM10. Despite the fact that other pollutants are regulated by Directive 2008/50/EC, analysis was limited to NO2 and PM10 as only compliance with their respective LV was analysed in IIASA's TSAP Report #11. Fig. 2 shows the number of zones inexceedance of the NO2 LVs for the period between 2000 and 2020. For both LVs, a decrease in the number of exceeding zones can be seen across the studied years, from a total of 6 zones in infringement of the NO2 hourly LV in 2000 to no zones in 2020 and from 13 zones in in- fringement of the NO2 annual LV in 2000 to 5 zones in 2020 (with max- ima being 7 and 21 zones respectively).