Since 13th August 2014, the following rules with regard to the discharging of washwater from the exhaust gas cleaning systems in waters under German jurisdiction apply:
Inland waterways: pursuant to Article 3 Section 2 in conjunction with Annex 2, Part C, Chapter VIII, Art. 9.01 in conjunction with Art. 8.01 of the Strasbourg Convention on the Collection, Deposit and Reception of Waste during Navigation (CDNI), it is forbidden to discharge washwater from exhaust gas cleaning systems (Scrubber) on all inland waterways, with the exception of the German part of Lake Constance and the Rhine River located above Rheinfelden, and the ports located on inland waterways situated
German Exclusive Economic Zone (EEZ) and sea waterways: pursuant to § 13 Section 7 of the German Maritime Environmental Behaviour Regulations („SeeUmwVerhV“), to the discharge of washwater from exhaust gas cleaning systems (Scrubber) on sea waterways and on the German exclusive economic zone (EEZ) is prohibited, unless it can be proved that the discharge of washwater satisfies the criteria of the IMO guidelines for exhaust gas cleaning systems 2009 (MEPC.184(59), VkBl. 2010 S. 341) and – in the case
that caustic soda is used - the pH-value does not exceed 8,0. Such a proof may be presented, for instance, in form of a valid approval as well as a documentation of the proper operation of the system.
As wash water we consider every water that was in contact with the exhaust gas. This includes wash water from open loop systems as also bleed-off and discharge water from closed loop systems.