Your standard disabled parking placard works on both sides of the border.

Yes — if you have a valid disabled parking permit from your state or province, you can use it for accessible drop-off zones near the main observation areas on both the US and Canada sides (like Niagara Falls or border parks). Mexico is trickier, but most US-Mexico border crossings recognize US placards at official sites.

The specific requirements to get the permit depend on where you live, not which