From The Washington Post:

The Drug Enforcement Administration is extending emergency controls for six more months on five chemicals used to make fake pot products.

The agency is working on permanently designating smokable herbal products containing the five chemicals as controlled substances. The DEA took emergency action a year ago, making it illegal to possess and sell the five chemicals or products containing them.

The agency says the extension will provide time to complete the steps to permanent controls.

From the U.S. Drug Enforcement Agency:

The United States Drug Enforcement Administration (DEA) is using its emergency scheduling authority to temporarily control five chemicals (JWH-018, JWH-073, JWH-200, CP-47,497, and cannabicyclohexanol) used to make “fake pot” products. Except as authorized by law, this action will make possessing and selling these chemicals or the products that contain them illegal in the U.S. for at least one year while the DEA and the United States Department of Health and Human Services (DHHS) further study whether these chemicals and products should be permanently controlled.