For the second time in two years, Colorado’s U.S. Rep. Jared Polis has introduced legislation that effectively would legalize and tax marijuana at the federal level.

Along with a fellow Democrat, Rep. Earl Blumenauer of Oregon, Polis on Friday introduced two bills, the first of which would remove marijuana from the Controlled Substances Act and shift regulation from the Drug Enforcement Administration to the Bureau of Alcohol, Tobacco, Firearms and Explosives. The ATF then would regulate marijuana like alcohol.

A second bill would impose a federal excise tax on the sale of marijuana for nonmedical purposes and would include an occupational tax for marijuana businesses. The excise tax initially would be set at 10 percent and over time increase to 25 percent.

“Rather than be a medicinal substance, it would be a controlled substance like alcohol and tobacco, so there’s still a federal interest in enforcement,” Polis told The Denver Post on Friday. “It’s important as we head into a presidential election. We don’t know if the next president will have the same hands-off approach that Barack Obama and Eric Holder eventually found their way toward.

“And it is gaining more and more support because more and more members of Congress are hearing about these issues from their constituents, for whom the federal law is a problem.”

Polis and Blumenauer introduced similar, unsuccessful bills in 2013. And in 2011, Polis introduced a bill to allow banks to carry business accounts of medical marijuana distributors and not face federal prosecution. That bill did not get a vote.

The proposed Marijuana Tax Revenue Act would establish civil and criminal penalties for people who do not comply and would require the IRS to study the marijuana industry and make recommendations to Congress.