From today's Arizona Republic:

Joe Sigg of the Arizona Farm Bureau calls the bill "a real job killer."

For example: Currently, milk has to be Grade A, whether you ship it to Casa Grande or California, as regulated by the FDA. The Arizona Department of Agriculture enforces the federal Pasteurized Milk Ordinance, but SB 1178 would prohibit that for milk shipped within the state.

The "FDA would have little recourse but to pull our license for Grade A milk," Sigg says. "The Arizona dairy industry and allied infrastructures of billions (of dollars) would be shuttered almost overnight."

Hospitals are subject to federal rules. So are CPAs. If homebuilders and agriculture within Arizona could not be held to federal air-quality standards, the state could lose federal highway funds. Electricity generated at Palo Verde Nuclear Generating Station and used in Arizona would not be subject to federal oversight. Power that goes to other states would be. How do you make that work?

SB 1178 is reckless and bound to be challenged in court.