Govt.-issued identifiers

SSNS

Think of the nine-digit numbers tied to U.S. taxes and employment records.

"Govt.-issued identifiers" points to Social Security Numbers, which are unique nine-digit codes assigned by the U.S. government for tracking individuals’ earnings and benefits. The answer "SSNS" is simply the plural abbreviation of Social Security Numbers—the extra "S" makes it fit the clue’s implied multiple identifiers. It’s a straightforward definition with no wordplay, just a common shorthand for official paperwork.