Four types of DCA

New Zealand is divided into 4 DCA 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 (MCA)

In MCAs, all cattle or deer on a farm are tested annually. Cattle over 3 months and deer over 8 months of age must have a TB test before they move within an MCA. 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 (STA) — Annual

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

Special Testing Area (STA) — Biennial  

In these areas, cattle and deer over 24 months of age are tested every 2 years.

Surveillance Area

In these areas, testing is targeted at 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 DCA

To further limit the potential spread of TB, we are introducing movement control restrictions for cattle and deer in an area of Central Otago – effective 1 October 2025.

If your property is near or across a DCA boundary on the map below, contact our Support Centre 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), Surveillance Areas (in dark grey), and a new Movement Control Area (in orange cross-hatch). Above the South Island is a round inset featuring the new Central Otago Movement Control Area. A line extends from the inset to the corresponding area of the South Island map.

New Central Otago MCA

Map showing boundaries of the Central Otago Movement Control Area