Section 27305 Of Article 2. Gun Show Enforcement And Security Act Of 2000 From California Penal Code >> Division 6. >> Title 4. >> Part 6. >> Chapter 3. >> Article 2.

. All gun show or event vendors shall certify in writing to the producer that they:
  (a) Will not display, possess, or offer for sale any firearms, knives, or weapons for which possession or sale is prohibited.
  (b) Acknowledge that they are responsible for knowing and complying with all applicable federal, state, and local laws dealing with the possession and transfer of firearms.
  (c) Will not engage in activities that incite or encourage hate crimes.
  (d) Will process all transfers of firearms through licensed firearms dealers as required by state law.
  (e) Will verify that all firearms in their possession at the show or event will be unloaded, and that the firearms will be secured in a manner that prevents them from being operated except for brief periods when the mechanical condition of a firearm is being demonstrated to a prospective buyer.
  (f) Have complied with the requirements of Section 27320.
  (g) Will not display or possess black powder, or offer it for sale.