King and Pierce County prosecutors are dismissing more than 220 misdemeanor marijuana cases in response to Tuesday’s vote to decriminalize small amounts of pot.

In King County, 175 cases are being dismissed involving people 21 and older and possession of one ounce or less. I-502 makes one ounce of marijuana legal on Dec. 6, but King County Prosecutor Dan Satterberg decided to apply I-502 retroactively.

“Although the effective date of I-502 is not until December 6, there is no point in continuing to seek criminal penalties for conduct that will be legal next month,” Satterberg said in a statement.