Rule 3 - Fibers Present in Amounts of Less Than 5%

(a) Except as permitted in paragraph (b) of the rule and Sections 4(b)(1) and 4(b)(2) of the Act, as amended, no fiber present in the amount of less than five per centum of the total fiber weight shall be designated by its generic name or fiber trademark in disclosing the constituent fibers in required information, but shall be designated as other fiber. Where more than one of such fibers are present in a product, they shall be designated in the aggregate as other fibers.

(b) Where a textile fiber present in a textile fiber product in the amount of less than five per centum of the total fiber weight of the product has a clearly established and definite functional significance where present in the product in the amount contained in such product so as to fall within the provisions of Sections 4(b)(1) and 4(b)(2) of the Act, as amended, relating to the disclosure of fibers having such functional significance and it is desired to disclose the presence of such fiber by generic name or fiber trademark name, the generic name of such fiber, the percentage by weight of the fiber in the total fiber content of the product, and the functional significance of the fiber shall be set out in the required fiber content disclosure, as for example:

96% Acetate
4% Spandex for Elasticity

In making such disclosure all of the provisions of the Act and Regulations setting forth the manner and form of disclosure of fiber content information including the provisions of Rule 17 and 41 relating to the use of generic names and fiber trademarks shall be applicable. [16 CFR 303.3, as amended, effective December 13, 1965.]