A clean point or ecopark is a controlled separation facility for recyclable waste. Its main function is to offer the citizens of the municipality a place to separately deposit the waste they generate in their homes and that cannot be deposited in the containers on the streets for daily garbage collection, such as household appliances or highly polluting substances such as batteries or toxic waste.

There is a lot of waste that is deposited in urban selective collection containers, which are blue for cardboard, orange for household oils, yellow for containers, green for glass, purple for textiles, brown for organic and gray for the rest fraction.

These wastes must have special consideration due to their physical characteristics (weight or volume) as well as their chemical characteristics (which increase their degree of toxicity or danger (irritants, toxics, gases,...).

The city council is in charge, through municipal or private companies, of transporting this waste to its final destination, be it recycling or disposal.

Each clean point has particular restrictions that the citizen must know beforehand, although in general they all accept the same waste. The transportation of waste is at the citizen's own expense.

In Madrid they are:

In addition, the following hazardous waste is collected: