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Standard for the Flammability of Children's Sleepwear: Sizes 0 Through 6X (FF 3-71)

16 CFR Part 1615

16 CFR Part 1615 is Standard for the Flammability of Children's Sleepwear: Sizes 0 Through 6X (FF 3-71). To certify a product to it, 16 CFR 1110.11(a)(2) requires the rule to be stated separately on the certificate, written as "16 CFR Part 1615 — Standard for the Flammability of Children's Sleepwear: Sizes 0 Through 6X (FF 3-71)". The eCFR records this part as last amended on 2016-10-02.

How to cite this on a certificate

16 CFR 1110.11(a)(2) requires each applicable rule to be stated separately. Listing it like this satisfies the form of the requirement:

16 CFR Part 1615 — Standard for the Flammability of Children's Sleepwear: Sizes 0 Through 6X (FF 3-71)

Citing a rule does not make it applicable, and 16 CFR 1110.11(a)(2) asks for every applicable rule. Whether this one applies to your product depends on its materials, construction and intended user age, which is your determination to make.

Scope, from the regulation

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 Standard: (a) Children's Sleepwear means any product of wearing apparel up to and including size 6X, such as nightgowns, pajamas, or similar or related items, such as robes, intended to be worn primarily for sleeping or activities related to sleeping, except: (1) Diapers and underwear; (2) “Infant garments,” as defined by section 1615.1(c), below; and (3) “Tight-fitting garments,” as defined by section 1615.1(o), below. (b) Size 6X means the size defined as 6X in Department of Commerce Voluntary Product Standard, previously identified as Commercial Standard, CS 151-50 “Body Measurements for the Sizing of Apparel for Infants, Babies, Toddlers, and Children.” 1 1 Copies available from the National Technical Information Service, 52

Quoted from 16 CFR Part 1615 on the eCFR, retrieved 2026-08-24 and last amended, per the eCFR, on 2016-10-02. The eCFR is the authoritative text; this page is a convenience copy.

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