ORS 332.356
Carbon dioxide monitors and alarms
- rules
(1)
Whenever a school district undertakes indoor HVAC infrastructure improvements using federal and state funds made available to the school district specifically for such purposes, the school district shall expend such funds toward carrying out the provisions of this section. A school district is not obligated to carry out the provisions of this section until funds are so expended.(2)
A school district shall ensure that each classroom is equipped with a carbon dioxide monitor that meets applicable standards required for carbon dioxide monitors under the specialty code and that each monitor:(a)
Is mounted to a wall between three and six feet above the floor and at least five feet away from doors and operable windows.(b)
Displays, at a minimum, carbon dioxide level readings that are readily visible to an individual who is inside the classroom.(c)
Provides notification by a visual indicator on the monitor that is made readily visible to an individual who is inside the classroom when carbon dioxide levels in the classroom exceed 1,100 ppm.(d)
Maintains a record of previous data, which includes at least the maximum carbon dioxide concentrations measured.(e)
Has a range of at least 400 to 5,000 ppm.(f)
Is certified by the manufacturer to be accurate within 75 ppm at 1,000 ppm carbon dioxide concentration and is certified by the manufacturer to require calibration no more frequently than once every five years.(3)
Qualified testing personnel shall assess whether carbon dioxide monitors meet the requirements of this section and include the assessment in the report submitted to a mechanical engineer under ORS 332.358 (HVAC assessment report).(4)
Intentionally left blank —Ed.(a)
If a classroom carbon dioxide concentration alarm setpoint is exceeded for more than 15 minutes more than four times during a month, classroom ventilation rates shall be adjusted or a direct outside airflow intake flow measurement device installed, and its accuracy verified, to ensure that peak carbon dioxide concentrations in the classroom remain below the setpoint.(b)
Adjustments shall be performed by qualified adjusting personnel.(c)
Each school shall:(A)
Record all incidents where the setpoint is breached in a classroom and maintain these records for at least five years.(B)
Upon request by a member of the public and free of charge, provide reasonable access to review the records described in subparagraph (A) of this paragraph in the central office of each school facility and in the central administrative office for each school district.(d)
Nothing in paragraph (c) of this subsection requires the Department of Education to verify the contents of the records described in paragraph (c) of this subsection.(5)
The Department of Education may, by rules adopted under ORS 332.365 (Rules), adjust the technical requirements for carbon dioxide monitors described in this section based on technological developments and as is consistent with maintaining proper ventilation in classrooms in accordance with any applicable standards set forth by the specialty code. [2023 c.525 §3]
Source:
Section 332.356 — Carbon dioxide monitors and alarms; rules, https://www.oregonlegislature.gov/bills_laws/ors/ors332.html (accessed May 26, 2025).