… In Germany, the Technical Instructions on Air Quality Control (Technische Anleitung zur Reinhaltung der Luft, TA Luft) lay down requirements for such model … a straightforward translation of the program to other languages. Associated content Links AUSTAL - Application Technical Instructions on Air Quality Control (ger) … In Germany, the Technical Instructions on Air Quality Control (Technische Anleitung zur Reinhaltung der Luft, TA Luft) lay down requirements for such model …