Officials in the Canadian province of British Columbia have invoked the region’s Emergency Program Act as part of efforts to stop the spread of avian influenza.

An order was signed under the Emergency Program Act at the weekend allowing the use of incinerators and landfills to dispose of infected poultry carcasses amid a massive cull and poultry depopulation plan, reported Dow Jones International News.

The destruction of around 19 million birds was ordered last week in order to stop the disease from spreading any further. Around 25 poultry farms in the province’s Fraser Valley are now believed to be infected with bird flu.

The cull, which will affect around 80% of the province’s poultry producers, became necessary after the disease spread beyond a controlled hot-zone surrounding the first infected farms.