The California Office of Environmental Health Hazard Assessment (OEHHA) is to initiate rulemaking to update the existing maximum allowable dose level (MADL) for lead.

The decision was set out in a letter to the Center for Environmental Health last week. It follows a petition by the Center to repeal or amend Proposition 65 regulations pertaining to the MADL.

On 7 July, OEHHA received a disc containing the materials referenced in the petition. The Office said it will post notice of a hearing on the petition for 9 October at 10:00am at the CalEPA Headquarters building in Sacramento.

The American Apparel & Footwear Association (AAFA) and environmental groups have opposed the agency's decision to update the regulation. They say it will affect "long-standing determinations and prior court-approved settlements based on the existing safe harbor level".