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.

Nuclear Family Priority Act - Amends the Immigration and Nationality Act to replace existing family-sponsored immigrant categories with a single preference allocation for spouses and children of permanent resident aliens.

Reduces the number of, and revises the calculation for, fiscal year family-sponsored immigrant entrants.
To amend the Immigration and Nationality Act to make changes related to family-sponsored immigrants and to reduce the number of such immigrants.