California Code, Education Code - EDC § 35295

(a) Because of the generally acknowledged fact that California will experience moderate to severe earthquakes in the foreseeable future, increased efforts to reduce earthquake hazards should be encouraged and supported.

(b) In order to minimize loss of life and disruption, it is necessary for all private elementary schools and high schools to develop school disaster plans and specifically an earthquake emergency procedure system so that pupils and staff will act instinctively and correctly when an earthquake disaster strikes.

(c) It is therefore the intent of the Legislature in enacting this article to authorize the establishment of earthquake emergency procedure systems in kindergarten and grades 1 through 12 in all private schools in California.