California: DTSC seeking public comment on the amended regulatory proposal to list Nail Products Containing Toluene as a Priority Product

On January 20, 2023, DTSC opened an additional 18-day comment period soliciting comments on a regulatory proposal to list Nail Products Containing Toluene as a Priority Product. Additional detail is provided around analytical testing requirements. Manufacturers submitting Alternatives Analysis Threshold Notifications are required to demonstrate products covered under the rule do not contain toluene in concentrations above the AAT and that the product will consistently meet the requirements of the rule. Acceptable testing laboratory practices are detailed within the proposal and address sample preparation, analytical method, instrument, calibration, and quality control. Information detailing analytical method is also required to be provided by manufacturers filing AAT notifications and includes data relating to the aforementioned criteria.