You will be given a definition of a task first, then some input of the task.
In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.

Revises Civil Service and Federal Employees' Retirement Systems provisions with respect to the deposit required in the case of an election to provide a survivor annuity to a spouse by a post-retirement marriage or to a former spouse.
Output:
To amend the provisions of chapters 83 and 84 of title 5, United States Code, which relates to the deposit required in the case of an election to provide a survivor annuity to a spouse by a post-retirement marriage or a former spouse.