An Email From Expedia, and a Question About Panama

In late August 2026, Expedia sent a notice to its lodging partners worldwide, including many in Panama. Starting September 27, 2026, a new European Union law will regulate how sustainability and environmental claims can be displayed on travel listings seen or booked by EU travelers — even when the property being advertised sits thousands of kilometers outside Europe, in a beach town in Panama or anywhere else.

The specifics of that EU law aren't the interesting part for our purposes here. What matters is the underlying legal mechanism it demonstrates: a government successfully requiring a global booking platform to police what appears in listings, and to build compliance directly into its own systems, worldwide, regardless of where the property or the host is located. This is worth pausing on, because it's exactly the mechanism Panama's own pending short-term rental law is trying — and struggling — to establish.

What the EU Law Actually Requires

According to Expedia's notice, the EU's Empowering Consumers for the Green Transition Directive (ECGT) will require that any environmental or sustainability claim shown to EU consumers be backed by clear, verifiable evidence or by a certification scheme that meets the directive's criteria. Generic claims like "eco-friendly," "green," or "environmentally responsible" will no longer be allowed unless the host can substantiate them. Hosts are being asked to either remove unsupported claims, replace them with specific factual statements (such as "EV charging available" or "partial solar power use"), or obtain a qualifying independent certification.

Expedia states it is updating its own guidelines and how it displays partner-submitted sustainability content accordingly — and that responsibility for knowing and complying with the relevant law ultimately rests with the host, not the platform.

Why This Matters Beyond Sustainability Claims

Set aside the environmental subject matter for a moment. What this case proves is that a regulator can, in fact, reach into a foreign, privately-owned booking platform and compel it to change what it allows hosts to publish — for listings anywhere in the world, as long as the audience is within that regulator's jurisdiction. The EU didn't ask nicely. It legislated a requirement, and platforms like Expedia are now building compliance systems to meet it, worldwide, ahead of a fixed deadline.

We have seen this notice only from Expedia so far — we're not aware of other major platforms sending equivalent communications to Panama-based partners, which itself says something about how unevenly even a binding EU law gets absorbed across the platform landscape. That unevenness matters for the comparison to Panama.

The Parallel to Panama's Proyecto de Ley 301

Panama's own pending short-term rental bill, Proyecto de Ley 301, rests on a similar premise: that platforms like Airbnb, Booking.com, and Vrbo can be legally required to check for a valid national registry number before allowing a property to be listed, and that those platforms can be brought into tax-withholding and data-sharing arrangements with Panama's tax authority. The bill's text says as much explicitly — no valid registry number, no listing, no rental.

The EU's sustainability-claims rule shows that this kind of platform-level enforcement is technically and legally achievable — a government wrote a rule, and a major platform is now rebuilding its listing requirements globally to comply with it before a hard deadline. But the EU is also a bloc of 27 countries with enormous collective market leverage and a mature regulatory enforcement apparatus. Panama is one country, and its bill, as currently drafted, contains no sanctions article — no penalty specified for a platform that lists an unregistered property, and no fixed enforcement deadline tied to platform cooperation actually taking effect.

That is the real open question hanging over Proyecto de Ley 301: passing a law that says platforms must verify registry numbers is one thing. Actually getting Airbnb, Booking, Vrbo, and the dozens of smaller platforms to build that verification into their systems — the way Expedia is now doing for the EU's sustainability rule — is another. If Panama cannot secure that cooperation, or cannot back the requirement with a credible enforcement mechanism, the registry requirement risks becoming exactly what critics have already warned about: another well-intentioned law that platforms and clandestine hosts alike simply route around.

What This Means for Travelers and Hosts Right Now

For property owners in Panama, the immediate takeaway isn't about sustainability labeling — it's a reminder that platform rules and national laws can and do change quickly, sometimes with deadlines set from outside the country entirely. Any environmental or sustainability claim in your own listings should already be something you can back up with real evidence, regardless of which regulation eventually reaches Panama directly.

For travelers, the more durable signal of legitimacy remains the same one this blog keeps coming back to: a property's actual registration status with Panama's tourism authority, not what a listing page claims about itself. Browsing our directory means every property has already been checked against that standard, rather than waiting for a platform — or a law — to eventually catch up.