; (B) how to provide PrEP safely and efficiently; (C) how to integrate PrEP with other essential prevention methods such as condoms; and (D) how to ensure high levels of adherence; and (7) to increase knowledge of Undetectable = Untransmittable (U=U) a person living with HIV who is on antiretroviral therapy (ART) and is durably virally suppressed (defined as having a consistent viral load of less than 200 copies/ml) cannot sexually transmit HIV. (c) Authorization of appropriations To carry out this section, there are authorized to be appropriated such sums as may be necessary for fiscal years 2019 through 2023. 747. Services to reduce HIV/AIDS in racial and ethnic minority communities (a) In general For the purpose of reducing HIV/AIDS in racial and ethnic minority communities, the Secretary, acting through the Deputy Assistant Secretary for Minority Health, may make grants to public health agencies and faith-based organizations to conduct— (1) outreach activities related to HIV/AIDS prevention and testing activities; (2) HIV/AIDS prevention activities