No Discharge Zone Compliance Markers — Marine Canada
Canada Shipping Act 2001 — Discharge Prohibitions · Federal — Canada
§The Law
Canada Shipping Act 2001 — Pollution Prevention — Canada Shipping Act 2001 — Discharge Prohibitions
“It is prohibited to discharge overboard any sewage, oily water, or plastic from a vessel in Canadian waters except as permitted. Vessels with holding tanks may need no-discharge labels at the overboard discharge valve to prevent accidental or deliberate prohibited discharge.”
View official regulation text✓Plain English
If your boat has a marine toilet (head), the overboard discharge valve — if one exists — should be clearly marked so crew do not accidentally open it in a no-discharge zone. All Canadian inland and most coastal waters are no-discharge zones for sewage.
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Specific Requirements
"NO DISCHARGE" or "HOLDING TANK ONLY" label at overboard valve
Label should be at the valve — not just posted elsewhere
Colour: red or high-visibility warning colour
Applies to: sewage, oily bilge water, garbage
Holding tank capacity and pump-out location chart recommended aboard
Fines up to $1 million under Canada Shipping Act
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📚Sources & Authority
Every claim on this page is backed by official government legislation and verified industry sources. Last verified: March 2026.
🏛 Official Government Sources
Pleasure Craft Licensing — Transport Canada
Transport Canada · March 2026
Official Transport Canada page for Pleasure Craft Licensing. Covers who needs a PCL, how to apply, number display requirements, and renewal.
Small Vessel Regulations — SOR/2010-91
Justice Laws Canada · March 2026
The Small Vessel Regulations define marking requirements for pleasure craft including PCL number size (75mm minimum), placement (both sides of bow), and colour contrast.
Canada Shipping Act, 2001
Justice Laws Canada · March 2026
The Canada Shipping Act is the federal legislation governing all vessel registration, safety, and compliance in Canadian waters.
🏢 Industry Organizations
All sources are official government publications or recognized industry authorities. Links verified March 2026. If you find a broken link, let us know.
See Also — Related Regulations
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Shop Marine Compliance LabelsOr call (289) 228-7021Regulation Quick Facts
- Regulation
- Canada Shipping Act 2001 — Pollution Prevention
- Jurisdiction
- 🇨🇦 Federal — Canada
- Category
- Marine & Boating Law
Source library
Confirm the current rule before relying on a marking
Our guides are a starting point for locating government sources connected to Canada Shipping Act 2001 — Pollution Prevention markings. Requirements can depend on jurisdiction, vehicle or site details, and the date you act.
- Open the linked official source and check its current version.
- Confirm the rule applies to your exact vehicle, vessel, property, or operation.
- Verify wording, dimensions, placement, and effective dates before ordering.
Compliance Certificate
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