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Title 40

Displaying title 40, up to date as of 6/09/2026. Title 40 was last amended 6/08/2026.
There have been changes in the last two weeks to Part 721.
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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter RToxic Substances Control Act700 – 799
Part 721Significant New Uses of Chemical Substances721.1 – 721.12218
Subpart AGeneral Provisions721.1 – 721.47
Subpart BCertain Significant New Uses721.50 – 721.91
§ 721.50Applicability.
§ 721.63Protection in the workplace.
§ 721.72Hazard communication program.
§ 721.80Industrial, commercial, and consumer activities.
§ 721.85Disposal.
§ 721.90Release to water.
§ 721.91Computation of estimated surface water concentrations: Instructions.
Subpart CRecordkeeping Requirements721.100 – 721.125
§ 721.100Applicability.
§ 721.125Recordkeeping requirements.
Subpart DExpedited Process for Issuing Significant New Use Rules for Selected Chemical Substances and Limitation or Revocation of Selected Significant New Use Rules721.160 – 721.185
§ 721.160Notification requirements for new chemical substances subject to section 5(e) orders.
§ 721.170Notification requirements for selected new chemical substances that have completed premanufacture review.
§ 721.185Limitation or revocation of certain notification requirements.
Subpart ESignificant New Uses for Specific Chemical Substances721.225 – 721.12218