California Code, Streets and Highways Code - SHC § 36504

This part is intended to be construed liberally and, if any provision is held invalid, the remaining provisions shall remain in full force and effect.  If the provisions of this part respecting the levying of assessments are held invalid in any area within which assessments have been levied pursuant to Chapter 3 (commencing with Section 36530), the assessments shall be reimposed in an identical amount and upon the same businesses as a matter of law and no lapse in the levy of any assessment shall be deemed to have occurred.  Assessments levied under this part are not special taxes.