GB/T 22330.5-2026Standard for specified animal disease free zones - Part 5: African swine fever free zones (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting. This document is Part 5 of GB/T 22330, "Standards for Disease-Free Zones for Animals". GB/T 22330 has already published the following parts.

1.General Rules;

2.Foot-and-mouth disease-free areas;

3.Swine Vesicular Disease-Free Zones;

4.Swine Fever-Free Zones;

5.African Swine Fever-Free Zones;

6.African Horse Sickness-Free Zones;

7.Rinderpest-Free Zones;

8.Zones free of bovine infectious pleuropneumonia;

9.No area of bovine spongiform encephalopathy;

10.Areas without bluetongue;

11.Small Ruminant-Free Zones;

12.Sheep-pox-free and goat-pox-free (sheep-pox)-free zones;

1 Scope

GB/T 22330.5-2026 is the Chinese national standard covering what a region must demonstrate to be recognised free of African swine fever - the surveillance and its coverage, the movement controls at the boundary, the biosecurity of the holdings inside and the contingency plan for an incursion. The 2018 epidemic killed a large part of China's pig herd, and this revision is written from that experience. It replaces GB/T 22330.5-2008 and has been in force since 1 October 2026. It was issued on 31 March 2026 and takes effect on 1 October 2026, replacing GB/T 22330.5-2008. The document is under the responsibility of the Ministry of Agriculture and Rural Affairs. This page is published from the official record of the 2026 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document specifies the basic requirements for establishing African swine fever-free zones, monitoring requirements, conditions for establishing infection control zones in the event of a limited outbreak, and the requirements for... Conditions for recovery in areas affected by African swine fever, etc. This document applies to the establishment and restoration of African swine fever-free zones.

4.African swine fever virus infection The occurrence of any of the following situations is considered an infection with African swine fever virus.

a) African swine fever virus was isolated and identified from collected pig samples.

b) African swine fever-specific antigens, nucleic acids, or specific antibodies were detected in any of the following samples. 1) Samples from pigs exhibiting clinical symptoms or pathological changes of African swine fever. 2) Samples from pigs that have been epidemiologically linked to confirmed or suspected cases of African swine fever. 3) Samples from pigs suspected of having been in contact with or associated with the African swine fever virus.

5.Incubation period The incubation period for African swine fever is 15 days.

5 African Swine Fever-Free Zones Published on 2026-03-

31 Implemented on October 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

7 Monitoring Requirements

7.1 Comply with the relevant provisions of GB/T 22330.1 regarding the monitoring of disease-free zones for animals.

7.2 An African swine fever surveillance program (plan) should be developed and implemented to promptly detect African swine fever virus infection. This program should at least include the surveillance entity, The scope, frequency, method, sampling method, diagnostic and testing methods, and result determination, etc.

7.3 The monitoring targets should include domestic pigs, wild boars and ticks.

7.4 The testing and diagnostic methods shall comply with the requirements of GB/T 18648.

8.Establish infection control zones in the event of a limited outbreak.

8.1 When an African swine fever outbreak occurs in an African swine fever-free zone, the disease-free status of that zone shall be temporarily suspended.

8.2 Delineate the epidemic hotspots, epidemic areas, and threatened areas, and take corresponding epidemic control measures.

8.3 Conduct epidemiological investigations and identify the source of the outbreak. If all outbreak sites are epidemiologically linked and limited in number and geographically distributed, [further action should be taken]. Chu confirmed that the outbreak was a limited outbreak occurring in a localized area within a previously unaffected region.

8.4 Based on the epidemiological investigation results, combined with geographical characteristics and the distribution of wild boars, soft ticks, etc., establish infection control centers in areas where limited outbreaks have occurred. Control area.

8.5 Clearly define the scope and boundaries of the infection control zone. The infection control zone should not be smaller than the threatened zone.

8.6 The infection control area should include all epidemiologically linked cases of African swine fever.

8.7 Conduct risk-based surveillance throughout the African swine fever-free zone. At least 30 days after the culling of the last infected animal in the infection control zone, no further infection should be detected. If a new African swine fever virus infection is discovered, an application can be made to establish an infection control zone.

9 Recovery of African swine fever-free zones

9.1 Once an infection control zone is established, all other areas outside the infection control zone will be restored to African swine fever-free zones.

a) Within three months of the culling of the last infected animal in the infection control area, monitoring has confirmed that no African swine fever virus infection has been detected. If infected, an application can be made to restore the African swine fever-free zone.

b) The restoration of an infection-free status in an infection control zone should be completed within 12 months of the outbreak.

9.2 Where no infection control zone has been established or constructed, and monitoring has proven that no African swine fever has been detected within 3 months following the culling of the last infected animal. If infected with African swine fever virus, an application can be made to restore the status of an African swine fever-free zone. GB/T 22330.5-2026. Standards for Disease-Free Zones - Part 5. African Swine Fever-Free Zones ICS

41 National Standards of the People's Republic of China Replaces GB/T 22330.5-2008 Standards for animal disease-free zones Part