from CA Department Fish and Game
Is a fishing license required while fishing from a public fishing pier in ocean waters?
A: No, but it must be a public fishing pier. A Sturgeon Fishing Report Card is required to take sturgeon from a public pier in ocean waters. A Spiny Lobster Report Card is required to take spiny lobster from a public pier in ocean waters.
(a) A sport fishing license is not required to take fish for any purpose other than profit by means of angling from a public pier in the ocean waters of the state. (b) For purposes of this section, ocean waters include, but are not limited to, the open waters adjacent to the ocean and any island; the waters of any open or enclosed bay contiguous to the ocean; the San Francisco and San Pablo Bays, with any tidal bay belonging thereto; and any slough or estuary, if found between the Golden Gate Bridge and the Benicia-Martinez Bridge (Fish and Game Code Section 7153).
A public pier is defined in the sport fishing regulations as a publicly owned man-made structure that has the following characteristics: is connected, above the mean high tide, to the main coastline or to the land mass 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 (California Code of Regulations, Title 14, Section 1.88)
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.
Even though licenses and stamps are not required while fishing from a public pier, all other regulations apply (including minimum size, bag limits, seasons and report card requirements).