Volcanic ash is the most widespread hazard of explosive volcanic eruptions and the most likely to affect towns, cities and farmland in the North Island of New Zealand. Ash fall can cause considerable disruption, which in some cases continue long after the volcanic eruption is over. Below are a series of posters, commissioned by the Auckland Lifelines Group (ALG), providing concise best practice information for critical infrastructure managers to effectively prepare for, respond to, and recover from ash-producing volcanic eruptions.