Federal regulators on Tuesday issued final rules requiring airlines to test and disinfect the tap water served to passengers and used in plane lavatories, an attempt to remedy bacteria contamination found in onboard water.
The Environmental Protection Agency rules set out schedules for how frequently airlines must flush and disinfect the water systems on planes and test for coliform bacteria.
Coliform are usually not harmful, but they are considered an indicator of the presence of disease-causing germs.
The schedules vary: Airlines that test water quality frequently don’t have to disinfect and flush as often; those that test less often must disinfect and flush more frequently.
The rules apply only to tap water supplied through aircraft water systems, not bottled water.
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