You may (quite reasonably) think the Federal Trade Commission’s Textile Act has nothing to do with you–you’re not a carpet salesperson, a purveyor of scarves, or a silkworm.
However, this law has a lot to do with brides because it prohibits retailers from removing tags or labels that contain information about garment manufacturers, fiber content, country of origin, and care instructions. The first one–manufacturers–is the one you’re concerned about, as it’s the one bridal shops most often clip away to prevent you from browsing in their stores and then taking your price-shopping self elsewhere. It’s much harder to shop around on a dress you fall in love with if you don’t know who the heck manufactured it.
Reputable shops don’t do this–if you encounter one that does, walk out the door and take your browsing elsewhere.