Cal. Gov. Code § 4216.1

Every operator of a subsurface installation, except the Department of Transportation, shall become a member of, participate in, and share in the costs of, a regional notification center. Operators of subsurface installations who are members of, participate in, and share in, the costs of a regional notification center, including, but not limited to, the South Shore Utility Coordinating Council, the Underground Service Alert—Northern California or the Underground Service Alert—Southern California are in compliance with this section and Section 4216.9.