In early March 2017 the vote concerning the new ISO/DIS 19040-2 standard for our A-YES® has been started and carried out by the ISO committee The vote ended in early June. The draft standard ISO 19040-2 of the A-YES® is now officially a ‘Draft International Standard’ (DIS). The draft standard with the title “Water quality – Determination of the estrogenic potential of water and waste water – Part 2: Yeast Estrogen Screen (A-YES, Arxula adeninivorans) is now commercially available.