Whenever in the judgment of the Commission such action will promote the objectives of this chapter by avoiding or resolving uncertainty as to its application, the Commission may by regulation declare to be a hazardous substance, for the purposes of this chapter, any substance or mixture of substances, which it finds meets the requirements of section 1261(f)(1)(A) of this title.
Proceedings for the issuance, amendment, or repeal of regulations under this subsection and the admissibility of the record of such proceedings in other proceedings, shall be governed by the provisions of subsections (f) through (i) of this section.
If the Commission finds that the requirements of section 1261(p)(1) of this title are not adequate for the protection of the public health and safety in view of the special hazard presented by any particular hazardous substance, it may by regulation establish such reasonable variations or additional label requirements as it finds necessary for the protection of the public health and safety; and any such hazardous substance intended, or packaged in a form suitable, for use in the household or by children, which fails to bear a label in accordance with such regulations shall be deemed to be a misbranded hazardous substance.
If the Commission finds that, because of the size of the package involved or because of the minor hazard presented by the substance contained therein, or for other good and sufficient reasons, full compliance with the labeling requirements otherwise applicable under this chapter is impracticable or is not necessary for the adequate protection of the public health and safety, the Commission shall promulgate regulations exempting such substance from these requirements to the extent it determines to be consistent with adequate protection of the public health and safety.
The Commission may exempt from the requirements established by or pursuant to this chapter any hazardous substance or container of a hazardous substance with respect to which it finds that adequate requirements satisfying the purposes of this chapter have been established by or pursuant to any other Act of Congress.
The Commission shall grant, in whole or in part, or deny any petition under section 553(e) of title 5 requesting the Commission to initiate a rulemaking, within a reasonable time after the date on which such petition is filed. The Commission shall state the reasons for granting or denying such petition. The Commission may not deny any such petition on the basis of a voluntary standard unless the voluntary standard is in existence at the time of the denial of the petition, the Commission has determined that the voluntary standard is likely to result in the elimination or adequate reduction of the risk of injury identified in the petition, and it is likely that there will be substantial compliance with the standard.