(a) Subject to subdivisions (b) and (c), Division 12 determines the priority of conflicting claims to Division 12 property when the priority rules of Division 9 (commencing with Section 9101) as amended by the act adding this division do not apply.
(b) Subject to subdivision (c), when the priority rules of Division 9 (commencing with Section 9101) as amended by the act adding this division do not apply and the priorities of claims to Division 12 property were established before the effective date of the act adding this division, law other than Division 12 determines priority.
(c) When the priority rules of Division 9 (commencing with Section 9101) as amended by the act adding this division do not apply, to the extent the priorities determined by the act adding this division modify the priorities established before the effective date of the act adding this division, the priorities of claims to Division 12 property established before the effective date of the act adding this division cease to apply on the adjustment date.