Today the U.S. Sentencing Commission voted to retroactively apply an amendment approved earlier this year by the U.S. Sentencing Commission that lowers federal guidelines for sentencing persons convicted of drug trafficking offenses. The vote could shorten sentences for tens of thousands of people who are already incarcerated and serving sentences for drug offenses by granting eligible individuals a hearing before a federal judge to evaluate whether their sentence can be reduced to match the reduced guidelines.

The underlying drug guidelines amendment was approved by the U.S. Sentencing Commission and submitted to Congress for review in April. Provided Congress takes no action to disapprove of the drug guidelines amendment before November 1, 2014, it will take effect on that date and courts may then begin considering petitions from incarcerated individuals for sentence reductions. Today's vote allows the drug guidelines amendment to apply retroactively. The U.S. Sentencing Commission ruled that no one who benefits from this reform may be released from prison before November 1, 2015.

Today's decision reflects efforts underway in Congress and by the Obama administration to reform federal drug sentencing laws, as well as a broader effort to adapt federal policy to overwhelming public support for reforming drug laws, ending marijuana prohibition, and reducing collateral consequences of a drug conviction. In 2010 Congress unanimously passed legislation reducing the crack/powder cocaine sentencing disparity. Bipartisan legislation reforming mandatory minimum sentencing, the Smarter Sentencing Act, has already passed out of committee this year and is awaiting a floor vote in the Senate. Attorney General Eric Holder has made numerous changes this year, including directing U.S. Attorneys to charge certain drug offenders in a way that ensures they won't be subject to punitive mandatory minimum sentencing.

In just the past two months, the U.S. House of Representatives has voted to block the Drug Enforcement Administration from spending federal funds to undermine state medical marijuana laws and state hemp cultivation laws, and voted on Wednesday to allow banking institutions to accept deposits from marijuana stores and dispensaries in states that regulate marijuana. On Monday, the White House issued a Statement of Administration Policy that expressed strong opposition to a House Republican amendment by Rep. Andy Harris (R-MD) directed at blocking implementation of a recent law the District of Columbia passed replacing jail time for possessing small amounts of marijuana for personal use with a small fine. The statement calls marijuana reform a "states' rights" issue, a groundbreaking policy position for the White House to take.

"It makes little sense, of course, to reform harsh sentencing laws proactively but not retroactively," said Ethan Nadelmann, executive director of the Drug Policy Alliance. "But that's what politicians do when they're scared of allowing people out of prison early. The Sentencing Commission really had no choice but to rectify the moral absurdity of keeping people locked up based on sentences that are no longer the law. What they did today was right and just."

According to the U.S. Sentencing Commission and a recent report by the Congressional Research Service, mandatory minimums have significantly contributed to overcrowding and racial disparities in the Bureau of Prisons (BOP). The BOP operates at nearly 140 percent capacity -- and is on track to use one-third of the Justice Department's budget. More than half of the prisoners in the BOP are serving time for a drug law violation. Even though African-Americans are no more likely than Whites to use or sell drugs, evidence shows they are far more likely to be prosecuted for drug law offenses and far more likely to receive longer sentences than Whites. With less than 5 percent of the world's population -- but nearly 25 percent of the world's prison population -- the U.S. leads the world in the incarceration of its own citizens.

As someone who has felt the sting of harsh sentencing laws after serving 12 years of a 15 to life sentence, I think the retro-application of the guidelines would balance the scales of justice, in reforming bad laws that dished out unfair sentences to individuals and allow them to be reunited with their families.