Article 11 Sewage
The Contracting Party shall prohibit the discharge of sewage from installations permanently manned by 10 or more persons into the Protocol Area except in cases where:
The installation is discharging sewage after treatment as approved by the competent authority at a distance of at least four nautical miles from the nearest land or fixed fisheries installation, leaving the Contracting Party to decide on a case by case basis; or
The sewage is not treated, but the discharge is carried out in accordance with international rules and standards; or
The sewage has passed through an approved sewage treatment plant certified by the competent authority.
The Contracting Party shall impose stricter provisions, as appropriate, where deemed necessary, inter alia, because of the regime of the currents in the area or proximity to any area referred to in Article 21.
The exceptions referred to in paragraph 1 shall not apply if the discharge produces visible floating solids or produces colouration, discolouration or opacity of the surrounding water.
If the sewage is mixed with wastes and harmful or noxious substances and materials having different disposal requirements, the more stringent requirements shall apply.