; or (xii) victim impact classes or other restorative justice programs. (3) Productive activity The term productive activity means either a group or individual activity that is designed to allow prisoners determined as having a low or no risk of recidivating to remain productive and thereby maintain a low or no risk of recidivating, and may include the delivery of the programs described in paragraph (2) to other prisoners. (4) Prisoner The term prisoner means a person who has been sentenced to a term of imprisonment pursuant to a conviction for a Federal criminal offense, or a person in the custody of the Bureau of Prisons, including a person in a Bureau of Prisons contracted facility. (5) Time credit The term time credit means the equivalent of one day of a prisoner’s sentence, such that a prisoner shall be eligible for one day of prerelease custody for each credit earned. (6) Drug trafficking offense The term drug trafficking offense means any crime punishable under Federal, State, or local law that prohibits the manufacture, import, export, distribution, dispensing of, or offer to sell a controlled substance or counterfeit substance (as such terms are defined in section 102 of the Controlled Substances Act ( 21 U.S.C. 802 )) or the possession of a controlled substance or counterfeit substance with intent to manufacture, import, export, distribute, or dispense. 107. Authorization of appropriations (a) In general There is authorized to be appropriated to carry out this Act $50,000,000 for each of fiscal years 2018 through 2022. Of the amount appropriated under this subsection, 80 percent shall be reserved for use by the Director of the Bureau of Prisons to implement the System under section 105 and the amendments made by that section. (b) Sense of congress It is the sense of Congress that any savings associated with reducing recidivism and reducing the prison population that result from this title should be reinvested— (1) into further expansion of recidivism reduction programs and productive activities by the