Four page handout for Goltens, featuring a piece of data visualisation on the benefits of implementing or waiting to retrofit your vessels with ballast water treatment systems, according to the regulations and deadlines.
![Cover of the handout](http://dbcortazar.com/wp-content/uploads/2017/03/goltens_front.jpg)
![Spread of the handout containing the data visualisation piece](http://dbcortazar.com/wp-content/uploads/2017/03/goltens_spread.jpg)
Four page handout for Goltens, featuring a piece of data visualisation on the benefits of implementing or waiting to retrofit your vessels with ballast water treatment systems, according to the regulations and deadlines.