Source: Elines

There are many circumstances which may cause us to arrive late from our existing pairing that causes us to be illegal for our next scheduled pairing on our schedule. It is important that Flight Attendants know the procedures to follow. Referencing JCBA Section 7.Q.6.(page 78):

All reassignment provisions are found in JCBA Section 7.Q. (page 75) and explained in the Legalities Guide (page 52). Please direct any questions to your Local Council.