Colorado, the first U.S. state to start recreational marijuana shops, may ban the word “candy” on pot-laced products, the Associated Press (AP) reported Tuesday. These items are also likely to carry a red stop sign on their packets, according to a new set of rules framed by marijuana regulators in the state.

The octagon-shaped symbol that would warn customers about marijuana in edibles will bear the letters “THC,” which is a psychoactive ingredient of the weed, the AP reported. The proposed rules also state that only single-serve packaging will be allowed on liquid products containing marijuana, defined as 10 milligrams of THC.

Besides, the rules also reportedly ban manufacturers from buying bulk candy and spraying it with cannabis oil.

The state marijuana regulators dismissed a previous proposal that stated the pot-infused items should be marked with a weed-leaf symbol after a parents' group asserted that the sign would only attract children. The new rules will reportedly go for a public hearing before final adoption.

"It's time we have a tool to really let people know there is pot in something," Diane Carlson of Smart Colorado, a parents' group, reportedly said.

The proposed rules come after the Centers for Disease Control and Prevention issued a statement last month, calling for clear labels and limited portion sizes of marijuana edibles. “Consuming a large dose of THC can result in a higher THC concentration, greater intoxication, and an increased risk for adverse psychological effects,” CDC said.

Since January 2014, after Colorado allowed the recreational use of pot, state regulators have been trying to enforce a requirement to give the packaging of edible marijuana a distinct look amid concerns that some people unknowingly consume cannabis-laced edibles.

The state has already barred manufacturers from using cartoon characters on packets of marijuana products or creating "look-alike" products such as candies designed to mimic common foods.