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1,4-Dioxane Limits for Household Cleansing, Personal Care, and Cosmetic Products

pictures of various products containing 1,4-Dioxane
1,4-Dioxane limits are being established in a variety of products.

The Legislature recently enacted amendments to Environmental Conservation Law (ECL) Article 35 and Article 37 (links leave DEC's website) to establish limits on the amount of 1,4-dioxane that can be present in household cleansing, personal care, and cosmetic products sold or offered for sale in New York State. The law establishes a maximum allowable concentration of 2 ppm of 1,4 dioxane on December 31, 2022, and 1 ppm on December 31, 2023, for household cleansing and personal care products. The law also establishes maximum allowable concentration of 10 ppm of 1,4 dioxane on December 31, 2022, for cosmetics.

DEC is in the process of creating a rule to implement the law and is holding stakeholder meetings to seek input on the regulations.

Outreach Information

DEC held two virtual public meetings to present and discuss the topics related to the law and regulations that may be developed. During the first meeting on November 18, 2020, DEC presented topics for discussion, which included the scope of covered products and the waiver process. A recording (link leaves DEC website) of the first meeting and slides (PDF, 679 KB) are available for review. The second virtual public meeting was held on December 2, 2020 and was a discussion of the information presented during the first meeting.

When regulations are proposed, they will be available for public comment.

Draft 1,4-Dioxane Method Performance Criteria

DEC has published draft Method Performance Criteria (MPC) for public review and comment.

DEC worked with the California Department of Toxic Substances Control's (DTSC) Safer Consumer Products program and Environmental Chemistry Lab to develop the draft 1,4-dioxane MPC. DEC is considering whether to include the draft MCP in the forthcoming regulations to provide guidance on what test methods are acceptable for manufacturers to use to determine whether their products comply with the law. DEC will share any comments received with DTSC, as they plan to incorporate these criteria into any regulations they pursue related to 1,4-dioxane as part of larger guidance on their Alternative Analysis Threshold.

Written public comments may be submitted via email to or via mail to the address below until July 23, 2021 at 5:00 p.m. EST.

Emily Dominiak
NYS DEC - Division of Materials Management
625 Broadway
Albany, NY 12233-7252

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