Proof of Freedom from bovine TB is a fundamental measurement of the progress of the TB plan.

After possum control work has been undertaken in a defined area, a mathematical model estimates the probability that possum control has been sufficient to eradicate TB. That guides whether the area can be declared TB-free or whether more possum control work is required.

The workings of that Proof of Freedom model, and how it supports the objectives of the National Pest Management Plan, are the subject of a new factsheet.