subchapter_subject: "TOXIC SUBSTANCES CONTROL ACT"
part_code: "721"
part_subject: "SIGNIFICANT NEW USES OF CHEMICAL SUBSTANCES"
subpart_code: "B"
subpart_subject: "Certain Significant New Uses"
section_number: "721.50"
section_subject: "Applicability."
cfr_reference: "40 CFR 721.50"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Parts 700 to 722"
revised_date: "Revised as of July 1, 2019"
publication_date: "As of July 1, 2019"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
This subpart B identifies certain significant new uses of chemical substances identified in subpart E of this part. The provisions of this subpart B apply only when referenced as applying to a chemical substance identified in subpart E of this part.