Four types of disease control areas

New Zealand is divided into four disease control area types. Each area has different TB testing frequencies and movement control measures, depending on the risk of TB being transferred from infected wildlife — mainly possums — to cattle and deer.

Movement control area

In movement control areas, all cattle or deer on a farm are tested annually. Cattle over three months and deer over eight months of age must have a TB test before they move within a movement control area. You must complete the movement within 60 days of the pre-movement test. Stock going direct to slaughter don't require a pre-movement test.

Moving animals from a Movement Control Area (MCA)

Special testing area — annual

In these areas, cattle over 12 months and deer over 15 months of age are tested annually.

Special testing area — biennial  

In these areas, cattle and deer over 24 months of age are tested every two years.

Surveillance area

In these areas, testing is completed on farms with a higher risk of contracting or spreading TB. Risk factors include:

  • higher frequency of animal movements on or off the farm
  • animal movements from higher-risk herds or areas (like those under movement control)
  • poor quality NAIT records.

This may mean we call some farms to present animals for TB testing sooner than expected (after their last whole herd test). Other farms may not hear from us for long periods.

Find out if your property is in a disease control area

If your property is near or across a disease control area boundary on the map, contact our Support Centre (0800 482 463) to find out about the TB testing policy in your area.

Map showing Disease Control Area boundaries in New Zealand. Disease Control Areas shown include Movement Control Areas (in orange), Annual Special Testing Areas (in light green), Biennial Special Testing Areas (in darker green) and Surveillance Areas (in dark grey).

Disease control area boundary changes

Disease control area boundaries changed on 1 March 2026.

Download the maps below to find out where movement control areas were affected by these changes.