New Mexico Issues Final PFAS Rule
New Mexico has finalized regulations implementing the state’s Per- and Polyfluoroalkyl Substances Protection Act. The final rule, issued by the New Mexico Environment Department (NMED), took effect July 1, 2026, and requires a phase-out of PFAS as well as reporting obligations and labeling standards for products containing intentionally added PFAS.
While several provisions were refined from the proposed rule to provide more flexibility, its broad labeling mandate continues to be a major compliance burden.
ILMA members should continue evaluating all products sold in New Mexico to determine coverage if they contain intentionally added PFAS and plan for compliance with both reporting and labeling obligations.
Labeling and Reporting Requirements
The final rule allows NMED to waive reporting requirements if substantially equivalent information is publicly available. Stakeholders can satisfy New Mexico’s reporting obligation through submissions to Minnesota’s PRISM reporting system, which could allow companies reporting through Minnesota’s PRISM system to avoid duplicative submissions in New Mexico.
The final rule also expands the exemption framework to include pesticides regulated by or under the jurisdiction of the Federal Insecticide, Fungicide and Rodenticide Act.
The final rule’s labeling requirement is the most operationally significant obligation for manufacturers. Products manufactured after Jan. 1, 2027, that contain intentionally added PFAS must bear a label with an outline of an Erlenmeyer flask and the word “PFAS” inside. The label must be clearly visible and legible before sale and must appear in a font no smaller than the largest consumer information text on the product. If consumer packaging obscures the product label, the packaging must also be labeled. NMED did not finalize the proposed requirement that label text appear in both English and Spanish.
Industry Challenges to the Labeling Mandate
The labeling requirement is being challenged in federal court. On July 1, the National Association of Manufacturers joined a coalition of industry groups in filing suit against NMED, arguing that the rule violates the First Amendment and the dormant Commerce Clause. The complaint argues that New Mexico is compelling manufacturers to convey the state’s message that any amount of any PFAS is dangerous. That characterization is scientifically unsupported given the vast diversity of the PFAS chemical class and varying risk profiles.
The coalition is seeking preliminary and permanent injunctive relief to block enforcement of the labeling mandate before it takes effect on Jan. 1, 2027.
ILMA is monitoring the litigation closely. A preliminary injunction would provide meaningful near-term relief for members facing New Mexico-specific labeling obligations, but ILMA members should continue compliance planning while the case proceeds since injunctive relief is not guaranteed.
