Knowing the mentioned factor about a particular item: how is cat litter supposed to be disposed of is the first step when you are getting rid of cat litter for your pet. It is a common practice to scoop most clumping litters and throw them in the trash bag while, tofu and pine litter being biodegradable can generally be composted. It is critical to adhere to local legislation regarding the disposal of pet waste since some places have established rules.