Yesterday, the federal government filed suit against California over Proposition 12’s effects on egg prices under the Egg Products Inspection Act of 1970, which sets standards to ensure eggs and egg products are properly labeled and packaged while preempting state law that imposes additional regulatory hurdles. California started to enforce Prop 12 this year, though it is one of several states that require cage free laying systems for egg layers.  The others include Arizona, Colorado, Massachusetts, Michigan, Nevada, Oregon, Utah, and Washington.  The suit alleges that California’s laws “impose burdensome red tape on the production of eggs and poultry products nationally in violation of the Supremacy Clause of th...