A powerful U.S. House panel that oversees federal drug enforcement efforts approved a bill on Thursday to require the Department of Justice and Attorney General Jeff Sessions to begin issuing more licenses to grow marijuana for research.

Prior to the vote, a bitter dispute broke out over a provision of the legislation that prevents anyone with a “conviction for a felony or drug-related misdemeanor” from being affiliated with cannabis research cultivation operations.

“There is no legitimate health or public safety justification for the inclusion of this language and we urge you to strike this unnecessary, punitive ban on individuals with previous drug law violations,” reads a letter sent to the committee’s leaders on Wednesday by the American Civil Liberties Union, Human Rights Watch, #cut50, the Drug Policy Alliance and other groups. “To help lower recidivism rates and improve public safety, we should be making it easier for people with records to obtain jobs, not more difficult.” [Read more at Forbes]