The path to revoking a primary control zone

The process leading to revoking a primary control zone (PCZ) begins when the last infected premises (IP) in a PCZ has completed primary decontamination. Certain steps are tied to the size of the premises and the type of action required. As a result, the number of days required to complete the revocation process may vary. The following outlines key trigger points for specific timelines related to an IP, an infected zone (IZ) within a PCZ, and a PCZ.

Individual IP

• Depopulation
• Disposal: complete and approved by the CFIA (for example, carcasses, litter, etc.)
• Primary decontamination: complete and approved by the CFIA (dry cleaned, equipment cleaned and disinfected, etc.)
• Cleaning and disinfection: fully complete and approved by the CFIA
• 14-day vacancy period OR live bird restocking under CFIA permit to move onto farm
• No positive detections
• IP released (remains subject to applicable PCZs)

IZ (3 km radius around IPs)

• Disposal at last IP: complete and approved by the CFIA (for example, carcasses, litter, etc.)
• Minimum 14-day outbreak surveillance (within the 3 km radius)
• No positive detections
• IZ released: (remains subject to applicable PCZs)

PCZ (10 km radius around IPs)

• Primary decontamination at last IP in PCZ complete and approved by the CFIA (dry cleaned, equipment cleaned and disinfected, etc.)
• 28-day post-outbreak surveillance (POS) within the 10 km radius to release a PCZ
• No positive detections
• PCZ revoked (Note: Canada will still be subject to post-event surveillance as a whole. Trade restrictions from some countries may continue for a period of time.)