Cal. Code Regs. tit. 14 § 1.88
A public pier is a publicly owned manmade structure that has the following characteristics: is connected, above the mean high tide, to the main coastline or to the landmass of a named and charted natural island; has unrestricted free access for the general public; and has been built or currently functions for the primary purpose of allowing angling access to ocean waters.
Additionally, publicly owned jetties or breakwaters that are connected to land, as described above, that have free unrestricted access for the general public and whose purpose it is to form the most seaward protective boundary of an ocean harbor are public piers. Jetties, breakwaters, promenades, sea walls, moles, docks, linings, barriers and other structures that are not the most seaward protective boundary of an ocean harbor, are not public piers.
Cal. Code Regs. Tit. 14, § 1.88
Note: Authority cited: Section 200, Fish and Game Code. Reference: Section 7153, Fish and Game Code.