Oregon Revised Statutes Education and Culture § 342.664

(1) The State Board of Education shall establish by rule the ratio of the number of pupils to the number of staff members who must hold current, recognized first aid cards in each school.

(2) In order to attain or maintain the ratio set under subsection (1) of this section, the district may require any staff member as a condition of employment to hold a current, recognized first aid card. The staff member shall have 90 days from the date on which the district imposes the requirement to obtain the first aid card.

(3) The district may waive the requirement of subsection (2) of this section for any staff member who is unable by reason of disability to obtain a recognized first aid card.