Prior to a nonemergency placement of a child in a foster care home, the child foster care license holder and caregivers in foster family and treatment foster care settings, and all staff providing care in foster residence settings must complete two hours of training that addresses the causes, symptoms, and key warning signs of mental health disorders; cultural considerations; and effective approaches for dealing with a child's behaviors. At least one hour of the annual training requirement for the foster family license holder and caregivers, and foster residence staff must be on children's mental health issues and treatment. Except for providers and services under chapter 245D, the annual training must also include at least one hour of training on fetal alcohol spectrum disorders, which must be counted toward the 12 hours of required in-service training per year. Short-term substitute caregivers are exempt from these requirements. Training curriculum shall be approved by the commissioner of human services.