Contrary to popular belief, EPA has authority to regulate articles under TSCA.
EPA has issued a final Significant New Use Rule (SNUR) for imported carpets treated with long-chain perfluoroalkyl carboxylate (LCPFAC) chemical substances. US manufacturers long ago stopped making them and resumption of manufacture and/or processing of the PFCs by anyone would be subject to prior Significant New Use notification. But the concern exists that foreign carpet makers are still using the chemicals. So the usual exemption from SNURs for imported articles does not apply for this use.
The rule will be effective 60 days after Federal Register publication - now in suspension with the government shutdown. Here's the prepublication copy and background on EPA's actions against perfluorochemicals.
10/22/13 Federal Register notice of final rule: here
EPA continues to look at whether to ban perfluorochemicals under section 6 of TSCA and is encouraging worldwide action against the chemicals (e.g., already on the REACH SVHC and likely to move to the Authorization list).