Revise definition of sex in Montana law

This bill revises Montana state law to define "sex" strictly in biological terms based on chromosomes, reproductive systems, and physical characteristics present at birth, rather than gender identity or subjective experience. It directly affects numerous state statutes covering areas like employment discrimination, healthcare access, voting regulations, and public services by standardizing how sex is interpreted across the legal code. The key provision establishes that sex is limited to two biological categories - male and female - determined by genetic and physical indicators such as XX or XY chromosomes and reproductive anatomy. By amending over 50 existing sections of the Montana Code Annotated, the bill ensures consistent application of this definition in laws related to equal pay, anti-discrimination protections, hospital admissions, and other public policies.