Edge
Edge means the seamed, un-seamed or taped border edge of a mattress or foundation that joins the top and/or bottom with the side panels.
Source
16 CFR § 1633.2
Scoping language
In addition to the definitions given in section 2 of the Flammable Fabrics Act as amended (15 U.S.C. 1191), the following definitions apply for purposes of this part 1633.