Washington State's New Chickenpox Vaccine Requirement for Grades 7-12The new vaccine requirement will start in the fall of 2015 for student in the 7th and 8th grade. In the fall of 2016 all students in 9th through 12th grade will be required to have two does of the vaccine. If your child has already had two doses of the vaccine they do not need to repeat it.Washington State has required only student in kindergarten through 6th grade to have two doses of the chickenpox vaccine, until now. The new requirement is based on national recommendations for the Advisory Committee on Immunization Practices. To learn more please visit Washington Department of Health website.