Panama has very few pump-out stations, and most private boats have no legal pump-out network to rely on. MARPOL Annex IV, which Panama has ratified, binds only ships of 400 GT or more or carrying over 15 people on international voyages. The canal bans sewage discharge outright. Everyone else plans holding and offshore discharge themselves.
Which sewage rules apply to your boat
Three sets of rules can apply, depending on the boat and where it is.
- MARPOL Annex IV (international). Panama is a party, and the annex is in force there according to the ITOPF country profile. Under IMO's text it applies to ships on international voyages of 400 gross tonnage or more, or certified to carry more than 15 persons. Most private yachts and day boats fall below both thresholds. Larger charter yachts and superyachts often do not.
- Panamanian pollution law. The Autoridad Marítima de Panamá (AMP) controls pollution from vessels in Panamanian waters under Ley 21 de 1980, except inside the canal. The AMP does not publish a sewage guide for small craft that we could find.
- Canal waters. The Autoridad del Canal de Panamá (ACP) sets its own rules, and they are the strictest in the country (below).
Protected areas add a fourth layer. MiAmbiente manages Coiba and the other national parks and marine reserves; see Panama's protected marine areas.
What Annex IV allows, and why small boats copy it
For ships it covers, Annex IV bans sewage discharge except in two cases:
- The ship runs an approved sewage treatment plant.
- Sewage is comminuted and disinfected by an approved system and discharged more than 3 nautical miles from the nearest land.
Untreated sewage may go over the side only more than 12 nm from land, with the ship en route at 4 knots or more.
A 35-ft sportfisher is not legally bound by those numbers. They are still the best benchmark you have. They are the international standard, and an AMP or MiAmbiente officer looking at a slick in Las Perlas will not care which annex applies to you.
The canal: no discharge, treated or not
ACP Advisory A-12-2025 (9 May 2025) bans discharge of sewage, treated or untreated, in canal waters. The same advisory covers ballast water, oily bilge water, solid waste and any other contaminating substance. Breaches can bring scheduling delays, extra charges and fines. The ACP's effluent standard, 2610 HIP 111, also bans untreated sewage and grey water from vessels that are not ACP's own.
For a transit, that means closed seacocks from the moment you enter canal waters until you clear them. That includes the Flats anchorage, Gatún Lake and Balboa. The ACP also requires a Western-type toilet with holding capacity for the advisor. Poor sanitary facilities are listed grounds for delay charges; see admeasurement and inspection.
Pump-out at Panamanian marinas: what we could confirm
Very little. None of the marina pages we checked on this site, at Flamenco, La Playita, Shelter Bay, Linton Bay, Bocas Marina, Red Frog or Carenero, confirms a working pump-out from the marina's own information.
- Red Frog (Bocas): Waterway Guide's listing shows Pumpout: No. IGY's own page lists fuel but not pump-out.
- Shelter Bay and Linton Bay: BerthFinder directory listings show "pump out". The Shelter Bay listing is unclaimed and generated from public records, so treat both as unconfirmed.
- Panama City marinas: no published pump-out that we could find. Flamenco lists waste disposal as a service; ask exactly what that covers.
Before you arrive, email the marina and ask three things: is there a pump-out, is it working, and is it a fixed station or a truck? Compare your options on choosing a marina.
Holding tanks, Y-valves and local boats
Many locally built and older boats in Panama have no holding tank at all, and the toilet discharges straight overboard. If you buy one, budget for a tank, or for an approved treatment unit if the boat will carry paying guests. Charter rules are covered under charter boat inspections.
On a boat with a tank:
- Keep the Y-valve set to the tank, and lock or tie it, in marinas, anchorages and canal waters.
- Know your tank's real capacity in days for your crew. A weekend in Las Perlas with eight aboard fills a small tank fast.
- Use marine toilet paper and enzyme treatments. Never use bleach-heavy products, which damage seals and treatment systems.
- Rinse the discharge line with fresh water after pumping out offshore to cut odour and scale.
Where never to discharge
Even at the right distance, some waters are off limits by common sense and park rules:
- Inside any marina or mooring field, and in anchorages such as La Playita, Taboga and Las Perlas.
- Inside national parks and marine reserves: Coiba, Bastimentos and Portobelo. In Guna Yala, reefs and village anchorages are the community's waters; see San Blas reef protection.
- Over reefs, seagrass and mangroves, where nutrients feed algae; see mangroves and seagrass.
- Near beaches and swimmers, and anywhere in canal waters.
Your practical starting checklist
- Check whether your boat is 400 GT or more or certified for more than 15 persons; if so, Annex IV applies in full.
- Find out whether the boat has a holding tank or treatment unit, and how many days it holds for your crew.
- Email your marina and ask whether a pump-out exists, works, and how it is booked.
- Set and secure the Y-valve to the tank before entering any marina, anchorage or canal waters.
- Discharge only offshore: beyond 3 nm with treatment, beyond 12 nm and under way at 4 knots or more if untreated.
- Close the seacocks for a canal transit and confirm toilet holding capacity before admeasurement.
Frequently asked questions
Are there pump-out stations in Panama?
Very few, and we could not confirm a working one from any marina's own information. Directory listings show pump-out at Shelter Bay and Linton Bay. Ask the marina directly before you rely on it.
Does MARPOL Annex IV apply to my yacht in Panama?
Only if it is 400 gross tonnage or more, or certified to carry more than 15 persons, on an international voyage. Panama is a party to Annex IV. Smaller boats should still use its distances as a working rule.
Can I use my toilet during a Panama Canal transit?
Yes, into a holding tank. The ACP bans sewage discharge, treated or untreated, in canal waters, and it requires a toilet with holding capacity for the advisor.
¿Dónde puedo vaciar el tanque de aguas negras en Panamá?
Hay muy pocas estaciones de bombeo. Pregunte a su marina antes de llegar. Si no hay servicio, descargue solo mar afuera: a más de 3 millas con tratamiento aprobado, o a más de 12 millas navegando a 4 nudos o más sin tratar. Nunca descargue en marinas, fondeaderos ni áreas protegidas.
The next question to answer
The environment sub-hub: AMP, MiAmbiente and the ACP's rules in one place. Read Clean boating in Panama.
Garbage rules, the plastics laws and what to wash the boat with. Read Trash, grey water and cleaning products.
Who to call at the AMP and MiAmbiente, and what to say. Read Reporting a fuel spill in Panama.
Same topic in Florida: coming from the US? Compare Boat Sewage Systems, Pump-Outs and Discharge Rules.
Official resources
Use the relevant Panamanian authority for current requirements and fees. These resources are the next place to check; a practical recommendation is not an agency determination.
- IMO: Prevention of pollution by sewage from ships (MARPOL Annex IV) ↗
- ITOPF country profile: Panama (competent authorities, conventions; Dec 2019) ↗
- ACP Advisory A-12-2025: extraction and discharges in canal waters (9 May 2025) ↗
- ACP Norma 2610 HIP 111: descargas de efluentes (rev. Feb 2021) ↗
- Waterway Guide (secondary): Red Frog Beach Island Marina amenities ↗
- BerthFinder (secondary, unclaimed listing): Shelter Bay Marina amenities ↗