Bring these

• Site emergency contact sheet
• Current floor plans

1. 1Leave and reportFollow the emergency plan, move people outside and call emergency services from safety. Explain that the event involves a CO alarm or suspected CO exposure, not simply a fire-panel beep.
2. 2Describe people who may be affectedTell the dispatcher about symptoms such as headache, dizziness, nausea or confusion, and where anyone missing was last seen. Do not re-enter for a rescue; emergency responders need that location information.
3. 3Do not dismiss a quiet detectorAn alarm stopping does not provide permission to return. Do not remove its batteries or use a handheld reading as your own clearance decision.
4. 4Give responders existing equipment informationReport fuel-burning appliances, recent combustion-equipment service and any engine-powered equipment operated nearby. Provide known information without going back inside to collect labels.
5. 5Separate re-entry from equipment restartWait for emergency-service clearance. Equipment identified as a source must be assessed and serviced by qualified personnel before operation. Document restrictions and pass them to every affected shift.

Record the exact location, observed condition, time, actions taken, person contacted and follow-up owner. Keep unresolved items visible. A completed checklist means the check was performed; it does not automatically mean the equipment passed or is safe.

CPSC: carbon monoxide alarm response — https://www.cpsc.gov/safety-education/safety-guides/carbon-monoxide/carbon-monoxide-fact-sheet CDC: carbon monoxide hazards at work — https://www.cdc.gov/niosh/carbon-monoxide/about/index.html Use the installed equipment manual and your site plan for equipment-specific procedures.