California Code, Education Code - EDC § 32043

(a) Whenever a field trip is conducted into an area which is commonly known to be infested by poisonous snakes, the first aid kit may include a snakebite kit.

(b) Any first aid kit or snakebite kit taken into an area which is commonly known to be infested by poisonous snakes shall contain medically accepted snakebite remedies.

(c) Any field trip into an area which is commonly known to be infested by poisonous snakes that is conducted by any public or private school in the state shall be accompanied by a teacher, employee, or agent of the school who has completed a course in first aid, certified by the American Red Cross, which emphasizes the treatment of snakebites.  It shall be the responsibility of the school conducting the field trip to comply with the requirements of this section and nothing in this section shall be construed as requiring the American Red Cross to provide first aid courses in any manner or location.