Cabinet has approved regulations requiring New Zealand poultry farmers with more than 100 birds to write, register, and carry out a biosecurity plan for highly pathogenic avian influenza (H5N1). The change shifts what was previously a voluntary system to a mandatory one. Biosecurity Minister Andrew Hoggard announced the new regulations on 28 July 2026, confirming that H5 bird flu has arrived in New Zealand and will "almost certainly establish in wild birds" (RNZ).

The rules apply to any poultry operation with more than 100 birds. Each biosecurity plan must set out how the farmer will prevent and manage bird flu, and must be registered with the Ministry for Primary Industries (MPI), which is overseeing the new system. Farmers will also need to keep records, carry out audits, and have clear plans for humane culling, disposal, cleaning, and disinfection if their operation is affected (RNZ).

MPI formally describes the plans as an "avian biosecurity control programme" — its term for the mandated biosecurity plan (MPI). The ministry consulted on the proposed regulations in late 2024 and received 36 submissions, which were broadly supportive. The regulations will now be drafted and shared with industry bodies before coming into force by the end of 2026 (RNZ).

The announcement follows confirmation of a second case of H5N1 in New Zealand, reported on 17 July 2026 (Beehive). A government official said at the time that bird flu "cannot be eradicated" and that the country "will have to learn to live with" it. There is currently no evidence of mass deaths in wildlife from bird flu in New Zealand (MPI).

The government and the poultry industry have also signed an agreement on jointly preparing for and responding to bird flu (Beehive). MPI says its bird flu programme aims to minimise impacts on the poultry sector and protect New Zealand's chicken and egg supply (MPI).

Hoggard said MPI is available to help farmers, especially smaller operators, with biosecurity practices (RNZ). MPI says the regulations will allow egg and chicken producers across New Zealand to make informed decisions about biosecurity measures that best protect their flocks (MPI).

In practical terms, MPI already advises commercial poultry farmers to limit visitors to necessary people only and restrict their access to houses, sheds, and other bird areas (MPI). It also recommends that bird owners make enclosures birdproof by repairing or blocking holes and keep birds away from open ponds, lakes, creeks, or other water (MPI). These measures are consistent with the types of controls the new mandatory plans will need to formalise.

The shift from voluntary to mandatory biosecurity is a notable change for the poultry sector. Until now, biosecurity measures for New Zealand poultry farmers have been voluntary, meaning farmers could adopt MPI's guidance but were not legally required to do so. The new system brings poultry into a structured compliance framework with registration, record-keeping, and audit obligations — placing it closer to the model used for other notifiable disease responses under the Biosecurity Act.

The 100-bird threshold captures commercial and semi-commercial operations while leaving very small backyard flocks outside the rules. Hoggard's emphasis on MPI support for smaller operators signals awareness that smaller commercial farmers may face more practical challenges in meeting compliance requirements than large-scale producers with existing biosecurity infrastructure.

The timeline also matters for industry planning. With regulations not coming into force until the end of 2026, there is a window for industry bodies to shape the drafting and for farmers to prepare. But with H5 already confirmed in New Zealand and the minister's assessment that it will almost certainly establish in wild bird populations, that window is a preparation period, not a waiting period. The wild bird reservoir means the threat is ongoing, and the regulatory system is being designed around managing endemic risk rather than containing a short-lived outbreak.

The broader context here is that the Cabinet sign-off and the joint government-industry agreement point to a coordinated response across both the public and commercial spheres. The broadly supportive consultation response — 36 submissions with no significant opposition reported — suggests the sector is aligned with the regulatory direction, which reduces the likelihood of industry pushback during the drafting phase.