California Code, Public Utilities Code - PUC § 7629

The authority of the commission to require such fences shall be exercised in each instance only when a verified application is filed with the commission by the person or persons owning cattle, horses, mules, or other domestic animals with the right or privilege to range or graze them upon the lands adjacent to the portion of the railroad sought to be fenced.

The application shall specify the ownership of the railroad sought to be fenced, and shall set forth a sufficient description of the lands to identify them, the agency or department of government administering the lands, and the nature of the right or privilege of each petitioner to range or graze domestic animals thereon.

Upon the filing of the application, notice thereof and of any hearing by the commission thereon shall be given by mail by the commission to the agency or department of government administering the land, and to the railroad corporation owning or operating the railroad. Such owners, agency or department, and the railroad may protest the granting of the application and may be heard thereon.