EPA is promulgating a significant new use rule (SNUR) under the Toxic Substances Control Act (TSCA) for two chemical substances collectively referred to as "HBCD." This action requires persons who intend to manufacture (including import) or process hexabromocyclododecane or 1,2,5,6,9,10-hexabromocyclododecane (HBCD) for use in consumer textiles (other than for use in motor vehicles) to notify EPA at least 90 days before commencing that activity. The required notification will provide EPA with the opportunity to evaluate the intended use and, if appropriate, to prohibit or limit that activity before it occurs. In this SNUR, the exemption for persons importing or processing a chemical substance as part of an article does not apply to importers and processors of HBCD as part of a textile article (e.g., as part of a bolt of cloth or part of an upholstered chair). EPA is also making a technical amendment to the codified list of control numbers for approved information collection activities so that it includes the control number assigned by the Office of Management and Budget (OMB) to the information collection activities contained in this rule.