(a) Prior to being used in any election, the vendor shall submit all voting system or ballot marking system source code changes or modifications into escrow in the same manner and under the same conditions in which the source code materials originally were placed in escrow.

(b) Annually or within 10 working days of a major release of an election management system, the vendor shall submit all source code changes or modifications into escrow in the same manner and under the same conditions in which the election management system source code materials originally were placed in escrow.

(c) Within five working days of the submission to the escrow facility of the changed or modified source code, the vendor shall notify each affected election jurisdiction as provided for in Section 20641, with a copy to the Secretary of State, that the source code placed in escrow has been changed or modified.