We have made the following updates to our COVID-19 Addendum:

Travel guidelines (page 8):
After travel outside of Washington state, you will have to quarantine for 14 days or quarantine and take a test 7 days after your return and come back to school after you have received the negative test result.

You can find the complete COVID-19 Addendum here. The current version is linked at the top of the newsletter each week, and any updates are announced in the newsletter.