(Portland, OR)  --  Portland Public Schools is requiring that all employees be vaccinated against COVID-19.  The school district announced yesterday employees will need to submit proof by August 31st unless they have an approved exemption.  People who aren't vaccinated will be regularly tested.  The school district worked with the Portland Association of Teachers and Portland Federation of School Professionals in approving the requirement.  The school district is also finalizing details on vaccine requirements for school volunteers and contractors.