; and (D) community service providers, such as library, school, and public transportation personnel. (d) Use of grant awards A recipient of a grant under this section may use grant funds for the following: (1) Adapting, maintaining, and expanding essential services provided by harm reduction service organizations to address the risks of drug overdose and contraction of infectious disease. (2) Maintaining or hiring staff. (3) Supporting program operational costs, including staff, rent, and vehicle purchase or maintenance. (4) Program supplies. (5) Support and case management services. (e) Authorization of appropriations There are authorized to be appropriated to carry out this section such sums as are necessary. . 305. Good Samaritan immunity (a) In general Part B of title II of the Public Health Service Act ( 42 U.S.C. 238 et seq. ) is amended by adding at the end the following: 249. Good Samaritan immunity (a) Limitation on civil liability for individuals who administer opioid overdose reversal drugs (1) In general Notwithstanding any other provision of law, except as provided in paragraph (2), no individual shall be liable in any Federal or State proceeding for harm caused by the emergency administration of an opioid overdose reversal drug to an individual who has or reasonably appears to have suffered an overdose from heroin or another opioid, if the individual administers the opioid overdose reversal drug in good faith. (2) Exception Paragraph (1) shall not apply to an individual if the harm was caused by the gross negligence or reckless misconduct of the individual who administers the drug. (3) Definition of opioid overdose reversal drug In this subsection, the term opioid overdose reversal drug means a drug approved under section 505 of the Federal Food, Drug, and Cosmetic Act that is indicated for the partial or complete reversal of the pharmacological effects of an opioid overdose in the human body. (b) Immunity from liability (1) Immunity (A) In general An individual described in subparagraph (B) shall