OAR 333-050-0050
Immunization Requirements


(1) For purposes of this rule, immunization against the following diseases means receipt of any vaccine licensed by the United States Food and Drug Administration (or the foreign equivalent) for the prevention of that disease.
(2) For purposes of ORS 433.267 (Immunization of school children)(1), immunizations are required as follows (see Primary Review Table to determine the number of required doses for a child’s age or grade):
(a) Diphtheria/Tetanus/Pertussis containing vaccine (DTaP) — Five doses must be received unless:
(A) The fourth dose was given at, within four days prior to or after the fourth birthday, in which case the child is complete with four doses; or
(B) The third dose of Diphtheria/Tetanus containing vaccine was received at, within four days prior to or after the seventh birthday, in which case the child is complete with three doses.
(b) Polio — Four doses must be received unless:
(A) The third dose was given at, within four days prior to or after the fourth birthday, in which case the child is complete with three doses of polio vaccine; or
(B) The student is 18 years of age or older. Polio vaccination at or after the 18th birthday is not required.
(c) Measles — Two doses must be received at or after 12 months of age. Vaccine doses given four days or fewer before 12 months of age are acceptable. The second dose must be received at least 24 days after first dose.
(d) Rubella — One dose must be received at or after 12 months of age. Vaccine doses given four days or fewer before 12 months of age are acceptable.
(e) Mumps — One dose must be received at or after 12 months of age. Vaccine doses given four days or fewer before 12 months of age are acceptable.
(f) Haemophilus influenzae Type b (Hib) — Up to four doses depending on the child’s current age and when previous doses were administered.
(g) Hepatitis B — Up to three doses must be received. If the first dose was received at or after 11 years of age and the second dose is received at least four months after dose one, the child is complete with two doses. Vaccine doses given four days or fewer before the 11th birthday are acceptable. If the first dose was received at or after 18 years of age, the student is complete with two doses.
(h) Varicella — Up to two doses must be received, depending on the child’s age when the first dose was administered. The first dose must be received at or after 12 months of age. Vaccine doses given four days or fewer before 12 months of age are acceptable. Second dose, if required, must be received at least 24 days after first dose.
(i) Hepatitis A — Two doses must be received at or after 12 months of age. Vaccine doses given four days or fewer before 12 months of age are acceptable. Beginning school year 2008–2009, the requirement for Hepatitis A vaccine will be phased in by grade. (See Primary Review Table, OAR 333-050-0120 (Immunizations Schedules for Spacing of Doses).)
(j) Tetanus/Diphtheria/Pertussis booster (Tdap) — One dose must be received at or after seven years of age, unless the last Diphtheria/Tetanus containing vaccine was given less than five years ago.
(3) Interrupted series: If there is a lapse of time between doses longer than that recommended by the standard described in OAR 333-050-0120 (Immunizations Schedules for Spacing of Doses), the schedule should not be restarted. Immunization may resume with the next dose in the series.
(4) A child shall not be excluded from school for failing to receive a required vaccine if the State Health Officer has determined that there is a vaccine shortage and that is the reason the child has not received the vaccine. Any vaccine that has been waived due to a vaccine shortage will be required at the next review cycle, once the shortage has been lifted. The Public Health Division shall notify local health departments, schools and facilities of any shortages that affect their procedures under these rules.
(5) The local public health officer, after consultation with the Public Health Division, may allow a child to attend a school or facility without meeting the minimum immunization requirements in case of temporary local vaccine shortage.
(a) The local health department shall provide a letter signed by the local health officer to the parent of the affected student detailing which vaccines the student is being exempted from. The letter must state that the student will receive an Exclusion Order if the student’s record is not updated with the missing doses prior to the next exclusion cycle.
(b) A copy of the letter must be attached to the student’s Certificate of Immunization Status on file at the school or facility.
(c) A photocopied form letter signed by the local health officer may be used by the local health department when the shortage is expected to affect more than one child.
(d) If the vaccine is still unavailable at the next exclusion cycle, the local health department, with the agreement of the Public Health Division, will not issue Exclusion Orders for the unavailable vaccine.
(6) The following immunity documentation satisfies the immunization requirements for the specified vaccines:
(a) Immunity documentation for Measles, Mumps or Rubella vaccination due to a disease history may be certified by a physician or an authorized representative of the local health department for a child who has immunity based on a health care practitioner’s diagnosis;
(b) Immunity documentation for Measles, Mumps or Rubella vaccination due to a documented immune titer may be certified by a physician or an authorized representative of the local health department;
(c) Immunity documentation for Hib vaccination may be certified by a physician or authorized representative of the local health department for a child who experienced invasive Haemophilus influenzae Type b disease at 24 months of age or older;
(d) Immunity documentation for Varicella vaccine may be signed by the parent for history of varicella. The date of the disease is not required. This immunity documentation will be automatically authorized by the local health department.
(e) Immunity documentation for Varicella based on laboratory confirmation of immunity may be certified by a physician or authorized representative of the local health department;
(f) Immunity documentation for Hepatitis B vaccination based on laboratory confirmation of immunity or confirmation of carrier status may be certified by a physician or authorized representative of the local health department; and
(g) Immunity documentation for Hepatitis A vaccination based on laboratory confirmation of immunity may be certified by a physician or authorized representative of the local health department.
(7) Children possessing the following medical exemptions are susceptible to the diseases for which they are exempt from vaccination:
(a) Exemption for Measles, Mumps, Rubella or Varicella vaccination may be certified by a physician or an authorized representative of the local health department for a post-pubertal female when she is currently pregnant or there is a significant risk of her becoming pregnant within one month; and
(b) Exemption for one or more immunizations shall be established by a diagnosis based on a specific medical contraindication certified in a letter from the physician or an authorized representative of the local health department. The vaccines, medical diagnosis, practitioner’s name, address and phone number must be documented and attached to the record.
(8) Exemptions and immunity documentation submitted to the school or facility must be in English.
(9) A child may attend a school or facility under ORS 433.267 (Immunization of school children)(1) if the child is up-to-date and remains up-to-date and in compliance with immunization schedules for spacing between doses presented in OAR 333-050-0120 (Immunizations Schedules for Spacing of Doses).
(10) If evidence is presented to the local health department that an Exclusion Order was issued in error because a vaccine was given within the four-day grace period recommended by the Advisory Committee on Immunization Practices as published in the General Recommendations on Immunization, the local health department shall rescind the Exclusion Order. The local health department shall notify the child’s school or facility when an Exclusion Order is rescinded.
(11) In situations where a child’s vaccine history presents an unusual problem not covered by these rules, the local health department may use its judgment to make a final determination of the child’s immunization status.
(12) A nonmedical exemption from immunization requirement is allowed for one or more of the vaccines. Parents claiming a nonmedical exemption must select which vaccines a child is being exempted from by checking the appropriate boxes on the Certificate of Immunization Status and submit the Certificate of Immunization status and the documentation specified in OAR 333-050-0040 (Statements (Records) Required)(12)(a)(C) or 333-050-0040 (Statements (Records) Required)(12)(b)(B) to the school or facility.

Source: Rule 333-050-0050 — Immunization Requirements, https://secure.­sos.­state.­or.­us/oard/view.­action?ruleNumber=333-050-0050.

Last Updated

Jun. 8, 2021

Rule 333-050-0050’s source at or​.us