"If it takes the notion of a firm gluteus or a flatter tummy to get some people in the door, that’s fine with us. Eventually they’ll find great teachers who help them understand what yoga is really about," Karpel wrote on the Yoga Alliance website. "But misguided notions about the purpose of yoga become destructive when they lead to misplaced government burdens."
The group points out that "yoga generally includes within its teachings not simply physical exercise, but activities such as meditation, spiritual chanting, breathing techniques, and relaxation skills."
The Yoga Alliance has submitted comments to the D.C. government, hoping that the city will address the issue during the rulemaking process.
The group cites a similar tax in New York state, which excluded yoga studios from the tax on fitness centers.
This post has been updated.