( June 3, 2025, 11:34 AM EDT) -- NEW ORLEANS — Small e-liquid makers and a vaping industry association argue in a June 2 appellant brief in the Fifth Circuit U.S. Court of Appeals that a district court judge erred by rejecting their claim that the U.S. Food and Drug Administration’s regulation of vaping is so “burdensome” it effectively bars small companies from entering the market, in violation of the Regulatory Flexibility Act (RFA)....