OLYMPIA — If you have a misdemeanor marijuana conviction on your record and you were 21 years old when you got it, an initiative signed by the Governor will soon erase it upon request. But only if you had just one, and it happened after January 1, 1998.

The Marijuana Justice Initiative, which will take effect at the end of June, will remove that conviction from a person’s criminal record, and can’t be used as part of the sentencing considerations for any future crime. People with pardoned convictions are also not required to mention them on employment or housing applications. After a conviction has been vacated, a person is allowed to state that they were never convicted of that crime.

Monday’s signing will set up a streamlined pardon process using a simple online form.

It will apply only to state and municipal ordinances, not federal, and doesn’t require an otherwise clean record.