Colorado lawmakers have rejected an initial effort to cap the potency of marijuana that customers can buy at recreational pot stores.

Rep. Kathleen Conti, R-Littleton, had proposed barring stores from selling marijuana and marijuana products — including concentrates — that contain more than 15 percent THC. That amount is below the average potency of products currently sold in recreational stores.

Late Wednesday, lawmakers on the House Finance Committee narrowly voted down the proposal, on a 6-5 vote. But that decision may not be the end of the debate — for this year or for next.

The proposed limit was pitched in an amendment to a bill — House Bill 1261 — reauthorizing Colorado’s rules for recreational marijuana stores. Wednesday’s hearing was the bill’s first, meaning there will be multiple other opportunities this legislative session to try again to insert the amendment.

And even those who voted against the amendment on Wednesday expressed support for some type of potency cap, after more study. [Read more at The Denver Post]