Shortly after its passage, the California Senate amended the bill in response to various misrepresentations that came to light after House passage. As of this writing, the bill was in suspension while California Assembly members evaluate the new information. The Senate may choose to vote on its amended bill in August. If it passes, the amended bill would have to be re-voted upon by the House.

The bill has been challenged by the Plumbing Manufacturers Institute (PMI), as well as NSF Intl., the Copper Development Association (CDA) and Non-Ferrous Founders' Society (NFFS), whose members include brass and bronze ingot manufacturers that supply most of the alloyed ingot to the plumbing manufacturing industry.

Objections were raised about a number of issues, the most striking of which is misinformation supplied by proponents of AB 1953 that led California lawmakers to believe faucets of various plumbing manufacturers already would comply with the new law. Top executives from Chicago Faucets, T&S Brass and Central Brass-whose products were cited as in compliance-all sent letters to the bill's author, Wilma Chan, assuring her this was not the case.

"AB 1953 proposes an unprecedented, artificially low standard that would prohibit virtually all faucets, valves and backflow preventers currently on the market,"