Exposure to the small amounts of BPA that migrate from the containers into the food they hold are not dangerous to infants or adults, the draft said.

"FDA has concluded that an adequate margin of safety exists for BPA at current levels of exposure from food contact uses," regulators wrote in the draft report, which will be reviewed Sept. 16 at a meeting of members of an FDA advisory committee studying the safety of the chemical.

The chemical industry and the agencies that regulate the use of BPA, the FDA and the Environmental Protection Agency, have deemed the chemical safe, largely on the strength of two industry-funded studies that found no problems.