U.S. Sen. Mazie Hirono, the Democrat from Hawaii, was among those in the Senate Wednesday rejecting a bill that would override state laws requiring labeling of food containing genetically modified organisms.

According to Hirono’s office, the legislation “would establish a voluntary national labeling standard and would only create a mandatory disclosure program if, three years after enactment of the law, the U.S. Department of Agriculture finds insignificant adoption of the voluntary standard by industry.”

The measure, proposed in part by Republican Pat Roberts of Kansas, did not get the necessary votes to advance.

“As a longtime advocate for consumer choice, I support a mandatory federal label that will allow families in Hawaii and across the country to make more informed decisions about the foods they choose to buy,” Hirono said in a press release. “I opposed Senator Roberts’ proposal because it would override state labeling laws and prevent states from being able to take future action on the issue without requiring a strong federal alternative. I look forward to considering alternative proposals that empower consumers.”

Hawaii’s other U.S. senator, Democrat Brian Schatz, also voted no, having made clear his intentions prior to the vote.

Reps. Tulsi Gabbard and Mark Takai (Democrats, Hawaii) voted against the measure last year when it was in the House.

Opponents call it the Deny Americans the Right to Know (DARK) Act, though it was supported by food and agricultural industry leaders like Monsanto.