MARINE SANITATION DEVICE
APPLIES TO:
ALL COMMERCIAL FISHING VESSELS THAT HAVE
INSTALLED TOILET FACILITIES
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REQUIREMENTS:
The Installed Toilet must be Coast Guard certified MSD.
Vsls 65 ft and under:
Type I or II or III MSD
Vsls over 65 ft:
Type
II or III MSD
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STANDARD:
-Type I & II MSDs must have a label on it per 33 CFR 159.16,
and be certified. Type III MSD's do not need a label.
Type I devlce certified under
33 CFR 159.12
Type II & III certified under
33 CFR 159.12 or 159.12a.
-The MSD must be operational.
-If the Installed Toilet, in conjunction with a holding tank, has a
"Y" valve:
It must be secured* ...
while in U.S. Territorial waters (inside the 3nm line) so
as to prohibit accidental discharge overboard.
*Use of a padlock, non-releasable wire-tie, or the removal of
the valve handle would be considered adequate securing of the
"Y" valve.
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INSTRUCTORS NOTES:
-Type III is basically a holding tank not designed for the direct
overboard discharge of sewage. A "Y" valve for the direct discharge
overboard is permitted but must be secured unless the vessel is
outside of U.S. waters more than three miles from shore.
-Vessels are not required to be equipped with a toilet or marine
head.
-Portable toilets (porta-potties) and buckets are not considered
installed toilets and are not subject to the MSD regulations.
However, the discharge of raw sewage by any means, within the U.S.
territorial waters (within the three mile limit) is illegal.
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REFERENCES: 33 CFR 159.55/159.57/159.7
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