The Luftfahrt-Bundesamt (German Aviation Authority; LBA, Federal Office for Aviation) and the Physikalisch-Technische Bundesanstalt (National Metrology Institute; PTB) granted official approval for EPCARD version 3.34 in December 2003. EPCARD.Net Professional version 5.4.3 was approved for official use for aircrew dose assessment by LBA and PTB in April 2010.