CA Pub Res Code Section 8899

When a COH88 value or values are shown on any document, the document shall include the following:

(a)

A statement that the orthometric height or heights shown are a COH88 value or values; exceptions shall be noted.

(b)

The station or stations to which the COH88 value or values are referenced and connected and the orthometric height value or values and the published or stated accuracy or accuracies of said referenced station or stations.