Cal. Business and Professions Code § 17043 : California Business And Professions Code — General Business Regulations — Unfair Trade Practices — Offenses Against The Chapter — Unlawful sale or gift for purpose of destroying competition Date: 15 Sep 2016 TEXT PDF Current through the 2016 Legislative Session It is unlawful for any person engaged in business within this State to sell any article or product at less than the cost thereof to such vendor, or to give away any article or product, for the purpose of injuring competitors or destroying competition. Ca. Bus. and Prof. Code § 17043