to encourage all States to participate in collecting and reporting data on adverse childhood experiences through the Behavioral Risk Factor Surveillance System, the Youth Risk Behavior Surveillance System, and other relevant public health surveys or questionnaires. (c) Worker health risks The Centers for Disease Control and Prevention shall use a portion of the funding appropriated under this section for data collection and surveillance activities on substance use, substance use disorders, drug overdose deaths, and non-fatal drug overdoses among workers, and the factors and practices that contribute to such use, disorders, and overdoses, including occupational injuries and illness as well as occupational exposure to opioids and other illicit and licit drugs. (d) Tribal epidemiology centers There shall be made available to the Indian Health Service for the purpose of funding efforts by Indian tribes and tribal epidemiology centers to improve data on drug overdose deaths and non-fatal drug overdoses, surveillance related to addiction and substance use disorder, and prevention of childhood trauma, not less than 1.5 percent of the total amount appropriated under this section for each fiscal year. (e) Authorization of appropriations There is authorized to be appropriated to carry out this section— (1) $500,000,000 for fiscal year 2020