Do cruise ships dump human waste?

Do Cruise Ships Dump Sewage? Yes. To get into a few more specifics than above, the U.S. allows cruise ships to dump treated waste into the ocean if they are within three and a half miles from shore. Beyond that point, there are no restrictions for dumping untreated, raw sewage in U.S. ocean waters.



In 2026, the question of whether cruise ships "dump" waste is subject to strict international regulations under MARPOL Annex IV. Cruise ships do not simply "dump" raw sewage into the ocean near coastlines. Most modern ships use Advanced Wastewater Treatment Systems (AWTS), which treat "black water" (toilets) and "grey water" (sinks/showers) to a level of purity that often exceeds municipal tap water standards. This treated water is then discharged only while the ship is moving and typically at least 12 nautical miles from land. If the sewage is untreated, it is strictly prohibited from being discharged within 12 miles of the coast. Furthermore, many "Special Areas" like the Baltic Sea or certain Alaskan waters have even stricter "zero-discharge" policies, requiring ships to hold all waste in onboard tanks until they reach a port with proper disposal facilities. While environmental groups still monitor these practices closely for accidental spills or illegal "bypass" incidents, the industry standard in 2026 is one of heavy filtration, disinfection, and strict adherence to international maritime law to minimize the impact on marine ecosystems.

People Also Ask

In 2016, Princess Cruises and its parent company Carnival Corp. plead guilty to seven felony charges and paid a $40 million penalty for polluting the ocean with waste and then trying to cover it up. It was charged for illegally dumping 4,227 gallons of oily waste 23 miles off the coast of Britain on Aug. 23, 2013.

MORE DETAILS

If you wonder whether cruise ships have jails, the answer is yes. Jails are called brigs on a cruise ship and tend only to be used in serious circumstances when no other options are available. Cabin arrest is typically used before the brig is needed.

MORE DETAILS

79% of all crimes reported onboard cruise ships are sexual assaults, as per the US Department of Transportation. This statistic is a stark reminder of the prevalence of sexual assaults on cruise ships, and serves as a powerful reminder of the need for increased safety measures to protect passengers.

MORE DETAILS

Most cruise ships are required to have a morgue on board as well as enough body bags in case of an emergency. The body will be kept at the morgue until it can be disembarked at the next major port or at the port of origin.

MORE DETAILS

As soon as an incident happens, cruise ship crew will activate a button that pinpoints the place where the person went into the water. The ship will then stop and turn back to that area. The ship and its crew will perform a lengthy search and rescue operation, lasting several hours.

MORE DETAILS

In 2023 thus far, there have been 10 overboard incidents affecting 11 people, according to data compiled by Ross Klein, a social work professor at Memorial University of Newfoundland, who runs a cruise safety website. Nine of those eleven people died as a result.

MORE DETAILS

Somewhere between very few and zero. Cruise ships move far too fast for sharks to follow them. Yes, a shark may have a burst speed that could match a ship, but not one that it could sustain.

MORE DETAILS

Cruise ships make their own drinking water. It's unsurprising since they're constantly surrounded by sea water – they use either steam evaporation or reverse osmosis processes to desalinate the water before minerals and chlorine are added. It's the same as a home filtration system, only significantly larger.

MORE DETAILS

Traditionally, the leftover food on a cruise ship is ground by food pulpers, then pulverized in a paste or slurry to be stored until the ship reaches land. Once the waste arrives on land, it is transported to a facility for processing. These facilities could be a landfill or an anaerobic digestion plant.

MORE DETAILS

During a typical one-week voyage, a large cruise ship (with 3,000 passengers and crew) is estimated to generate 210,000 US gallons (790,000 L) of sewage; 1 million US gallons (3,800 m3) of graywater (wastewater from sinks, showers, and laundries); more than 130 US gallons (490 L) of hazardous wastes; 8 tons of solid ...

MORE DETAILS

Jails are called brigs on a cruise ship and tend only to be used in serious circumstances when no other options are available. Cabin arrest is typically used before the brig is needed. Discuss this topic at our Cruise Boards > Free daily cruise updates to your inbox > Subscribe for daily cruise news on YouTube >

MORE DETAILS

Cruise ship tap water is safe to drink unless you are told otherwise by the ship's authorities. The water throughout the ship has been treated, filtered and frequently tested to meet the standards of the World Health Organization and the U.S. Public Health Service on ships sailing into and out of U.S. ports of call.

MORE DETAILS

The safest cruise lines were able to rescue only 40 percent of overboard passengers, and most save far fewer, he said. The rescue rate was as low as 6 percent on at least one cruise line.

MORE DETAILS

Within the last 111 years, over 20 cruise ships and ocean liners have sunk.

MORE DETAILS

Since 2018, seven people have been reported missing from cruise lines, according to archives provided by the U.S. Department of Transportation. The most recent suspicious death on a cruise ship happened between October and December of 2019. In 2018, three people were reported missing by Carnival Cruise Lines.

MORE DETAILS

The average speed of a modern cruise ship is roughly 20 knots (23 miles per hour), with maximum speeds reaching about 30 knots (34.5 miles per hour). How fast a ship is able to sail depends on several factors, including the power of its engines, the weather and the conditions at sea.

MORE DETAILS

if you fall overboard at night there's a good chance you'll be lost at sea. There are no lifeguards. There is typically an officer of the watch, a helmsman, and possibly a lookout on duty in the bridge but their attention is typically focused ahead of the ship, not behind.

MORE DETAILS

While it is technically possible that a cruise ship could tip over, it would be extremely unlikely in the modern era. Even during the most severe storms, a modern cruise ship is far more stable than you might assume.

MORE DETAILS

While ZipRecruiter is seeing annual salaries as high as $102,500 and as low as $14,500, the majority of Cruise Ship Worker salaries currently range between $30,000 (25th percentile) to $58,000 (75th percentile) with top earners (90th percentile) making $90,000 annually across the United States.

MORE DETAILS

Medical staff varies by ship size, but typically ships have a doctor and at least two nurses. The world's largest cruise ships may have two doctors and five or six nurses. River ships and small ships that hover close to shore have less staff since they can easily access health facilities on land.

MORE DETAILS

The Maritime Injury Guide reports that 19 people go missing from cruise ships yearly. While that may not sound significant, it adds up to 400 people over the last 20 years. This includes accidental falls overboard, suicides, and disappearances during port visits.

MORE DETAILS