California law requires that contractors provide a Notice to Owner regarding mechanics liens BEFORE a contract is signed. The contract must state that upon satisfactory payment being made for any portion of the work performed, the contractor shall furnish a full and unconditional release from any claim or mechanics lien for that portion of the work for which payment has been made. Failure to provide this notice can result in disciplinary action. The Notice to Owner also states that the owner or tenant has the right to require the contractor to have a performance and payment bond. This form is a sample of such a notice.