Navy Constellation (FFG-62) Class Frigate Program: Background and Issues for Congress [Updated March 2, 2022] [open pdf - 2MB]
From the Summary: "The Navy began procuring Constellation (FFG-62) class frigates (FFGs) in FY2020, and wants to procure a total of 20 FFG-62s. Congress funded the first FFG-62 in FY2020 at a cost of $1,281.2 million (i.e., about $1.3 billion) and the second in FY2021 at a cost of $1,053.1 million (i.e., about $1.1 billion). The Navy's proposed FY2022 budget requests $1,087.9 million (i.e., about $1.1 billion) for the procurement of the third FFG-62, and $69.1 million in advance procurement (AP) funding for the fourth and fifth FFG-62s, which are programmed for procurement in one or more future fiscal years."
CRS Report for Congress, R44972
Congressional Research Service: https://crsreports.congress.gov/