Current labeling makes it difficult to determine whether a product contains the hormonally active chemical bisphenol A (BPA) as well as an entire group of compounds known as phthalates, about which scientists have also raised questions.
The following reports may help:
U.S. Food and Drug Administration: Science Board subcommittee draft assessment of bisphenol A for use in food contact applications (9/16/2008) . . . and consideration by full committee (10/31/08)
Links to a wealth of information on BPA safety from government, environmental groups and industry sources.