各地政策不同，電話問一下不費事，網上搜的：

A Yard sale permit is a permit acquired by residential owners to engage in a yard sale. The permit differs from state to state. In states like Chicago, you have to go to one of the 50 Aldermen ward offices to get the permit while in some cities in California, you can get it online.

The fee to get the yard sale permit is also dependent on each city. In Chicago, it’s $5, in South Gate, California it is $13 while in some places it’s free. Also in South Gate, if you just recently moved to your apartment, you will have to present your water bill along with your photo ID and an ID that contains the address the yard sale will be held.