California Code
CHAPTER 2.5 - Oil and Gas Liens
Section 1203.63.

1203.63. The taking of any note or any additional security by any person given a lien by this chapter shall not constitute a waiver of the lien given by this chapter unless made a waiver by express agreement of the parties in writing. The claiming of a lien under this chapter shall not constitute a waiver of any other right or security held by the claimant unless made a waiver by express agreement of the parties in writing.

(Added by Stats. 1959, Ch. 2020.)