Cal. Food & Agric. Code § 27510

“Egg handler” means a person engaged in the business of producing, candling, grading, packing, or otherwise preparing shell eggs for market or who engages in the operation of selling or marketing eggs that he or she has produced, purchased, or acquired from a producer, or which he or she is marketing on behalf of a producer, whether as owner, agent, employee, or otherwise. This section shall not apply to any purchaser who is a retailer and who does not handle eggs in any other capacity, except as a retailer.