California's infamous egg-layer referendum of 2008 comes home to roost on New Year's Day as all eggs sold in the state must comply with the associated regulations beginning that day.California's infamous egg-layer referendum of 2008 comes home to roost on New Year's Day as all eggs sold in the state must comply with the associated regulations beginning that day. Specifically, the measure provides that all eggs produced in California, the fifth-largest egg producing state, must adhere to the new rules on battery cages. A subsequent state law expanded that requirement to include all eggs sold within California even if produced outside of its borders. The state is currently the largest egg-consumer of all 50 in the nation.Six states filed a la...