Comparative Claims and Challenges by Competitors
A comparative claim must be supported by testing of the advertised product and the named comparison product, performed under identical conditions on the versions currently sold. Where the comparison names its evidence, the evidence must exist in that form. Beyond agency enforcement, a rival may sue under Section 43(a) of the Lanham Act for false advertising, seeking an injunction and monetary relief, or bring the claim before a self-regulatory advertising body.










