State law allows waivers for religious or moral reasons.
(1) The attendance of every child at every public and private school in the state and licensed day care center shall be conditioned upon the presentation before or on each child’s first day of attendance at a particular school or center, of proof of either (a) full immunization, (b) the initiation of and compliance with a schedule of immunization, as required by rules of the state board of health, or (c) a certificate of exemption as provided for in RCW 28A.210.090.
(1) Any child shall be exempt in whole or in part from the immunization measures required by RCW 28A.210.060 through 28A.210.170 upon the presentation of any one or more of the certifications required by this section, on a form prescribed by the department of health:
(a) A written certification signed by a health care practitioner that a particular vaccine required by rule of the state board of health is, in his or her judgment, not advisable for the child: PROVIDED, That when it is determined that this particular vaccine is no longer contraindicated, the child will be required to have the vaccine;
(b) A written certification signed by any parent or legal guardian of the child or any adult in loco parentis to the child that the religious beliefs of the signator are contrary to the required immunization measures; or
(c) A written certification signed by any parent or legal guardian of the child or any adult in loco parentis to the child that the signator has either a philosophical or personal objection to the immunization of the child. A philosophical or personal objection may not be used to exempt a child from the measles, mumps, and rubella vaccine.
WAC 246-105-055 Philosophical and personal exemption for measles, mumps, and rubella vaccine prohibited
A philosophical or personal exemption may not be used to exempt a child from the measles, mumps, and rubella immunization requirement