To amend certain provisions of chapter 311 of title 18, United States Code, relating to parole.

[AI summary unavailable — showing source text] Provides eligibility for parole within the discretion of the U.S. Board of Parole after completion of one year of sentence for sentences longer than three years duration. Retains a minimum sentence of fifteen years for life terms. Gives authority for the Bureau of Prisons to prepare studies of inmates and make recommendations to the Board of Parole. Recodifies three present criteria for the Board of Parole to apply in exercising its jurisdiction, and adds a fourth condition, that the individual must have made positive efforts towards his own rehabilitation. Continues the present authority of a sentencing judge to impose a minimum term during which a prisoner may not be eligible for parole. Requires the Bureau of Prisons to prepare a report and recommendation to the Board of Parole for all prisoners eligible for parole. (Amends 18 U.S.C. 4204)…