That's a great and very practical question! It's one of those small details that can cause confusion when you're dealing with public or commercial waste bins.
The short answer is: It completely depends. There's no universal standard. Typically, for public urban trash cans you see on sidewalks, in parks, or at transit stations, the liners (or bags) are provided and maintained by the municipal sanitation department or a contracted service. They are considered a necessary operating supply, like fuel for a garbage truck. As a citizen, you don't buy them separately; your taxes or fees fund their provision and replacement.
However, the situation changes if you're asking about a commercial or residential property's outdoor bins (like those behind a restaurant or in an apartment complex). Often, the bins themselves are purchased or leased, and the property manager is responsible for buying compatible liner bags separately. Many bin manufacturers sell proprietary liners designed for a perfect fit.
For personal/indoor use, it's almost always the case that small household trash cans are sold *without* liners. You purchase bags separately in rolls that fit your can's size.
Here’s a quick guide:
* Public Street Bins: Liners are included in public service.
* Park & Public Space Bins: Liners are included in public service.
* Commercial/Industrial Dumpsters: No liners typically; waste is dumped directly.
* Commercial Roll-Out Carts: Liners are often NOT included; bags are bought separately by the business.
* Home/Office Desk Bins: Almost always sold separately.
What to do if you're unsure?
If you're managing a space and need to know, check the purchase documentation for the bin or contact the supplier. For public bins with missing liners, report it to your city's 311 line or public works department.
So, while you usually don't buy liners for true *public* urban cans, for most other scenarios, plan to purchase them as a separate, ongoing cost. Always verify for your specific situation!