Cal. Gov. Code § 50023
The legislative body of a local agency, directly or through a representative, may attend the Legislature and Congress, and any committees thereof, and present information to aid the passage of legislation which the legislative body deems beneficial to the local agency or to prevent the passage of legislation which the legislative body deems detrimental to the local agency. The legislative body of a local agency, directly or through a representative, may meet with representatives of executive or administrative agencies of state, federal, or local government to present information requesting action which the legislative body deems beneficial to, or opposing action deemed detrimental to, such local agency. The cost and expense incident thereto are proper charges against the local agency.
Ca. Gov. Code § 50023