16 CFR §260.13

1. (a)It is deceptive to misrepresent, directly or by implication, that a product or package is made of recycled content. Recycled content includes recycled raw material, as well as used, 50 reconditioned, and re-manufactured components.
2. (b)It is deceptive to represent, directly or by implication, that an item contains recycled content unless it is composed of materials that have been recovered or otherwise diverted from the waste stream, either during the manufacturing process (pre-consumer), or after consumer use (post-consumer). If the source of recycled content includes pre-consumer material, the advertiser should have substantiation that the pre-consumer material would otherwise have entered the waste stream. Recycled content claims may—but do not have to—distinguish between pre-consumer and post-consumer materials. Where a marketer distinguishes between pre-consumer and post-consumer materials, it should have substantiation for any express or implied claim about the percentage of pre-consumer or post-consumer content in an item.
3. (c)Marketers can make unqualified claims of recycled content if the entire product or package, excluding minor, incidental components, is made from recycled material. For items that are partially made of recycled material, the marketer should clearly and prominently qualify the claim to avoid deception about the amount or percentage, by weight, of recycled content in the finished product or package.
4. (d)For products that contain used, reconditioned, or re-manufactured components, the marketer should clearly and prominently qualify the recycled content claim to avoid deception about the nature of such components. No such qualification is necessary where it is clear to reasonable consumers from context that a product's recycled content consists of used, reconditioned, or re-manufactured components.