Voters should care about this bill because it would fundamentally change how the federal government understands and defines basic terms like "male," "female," and "sex" across all its operations. If this bill becomes law, it would establish a uniform, biologically-based definition of sex at conception for all federal statutes and regulations, overriding any current or future interpretations that might include gender identity or account for intersex variations. This would mean that a person's legal sex under federal law would be permanently fixed at birth based on specific biological characteristics.

If the bill does not become law, federal agencies and courts could continue to interpret "sex" in various ways, potentially including gender identity or considering a broader range of biological factors. The bill's passage would have significant implications for discussions around transgender rights, sex-segregated spaces, healthcare access, and data collection, as it would legally codify a specific, narrow definition of sex for all federal purposes, effectively excluding gender identity from federal recognition as a replacement for sex.