The lawmakers behind a recent congressional amendment protecting medical marijuana operations in states where the drug is legal strongly rebuked the Department of Justice for trying to continue to crack down on some medical marijuana businesses.

The DOJ believes the law only stops it from “impeding the ability of states to carry out their medical marijuana laws,” department spokesman Patrick Rodenbush said in a statement, portions of which were previously published in the Los Angeles Times. “Consistent with the Department’s stated enforcement priorities, we don’t expect that the amendment will impact our ability to prosecute private individuals or private entities who are violating the Controlled Substances Act.”

But Reps. Dana Rohrabacher (R-Calif.) and Sam Farr (D-Calif.), the co-sponsors of the historic amendment that prohibits the DOJ from using funds to go after state-legal medical marijuana programs, told The Huffington Post that the department is incorrect in its understanding of the law. [Read more at The Huffington Post]