This research was checked claim-by-claim against Tier-1 primary sources: the PWFA statutory text at 42 U.S.C. §§ 2000gg–2000gg-6, the EEOC Final Rule materials for 29 CFR Part 1636, the EEOC “What You Should Know” and key-provisions summaries, Young v. UPS, California Government Code § 12945 materials, Minnesota DLI WESA guidance, Massachusetts G.L. c. 151B § 4, Connecticut § 46a-60, New York Lab. Law § 206-c, New Jersey DCR pregnancy-accommodation guidance, and public reports of the Fifth Circuit / Louisiana litigation postures.
For an employer, the practical rule is this: if you have 15 or more employees, federal law requires a real interactive process and reasonable workplace adjustments for pregnancy-related limitations unless you can prove undue hardship — you generally may not answer with unpaid leave first. Smaller employers may still be covered by state statutes (for example California at 5+, Minnesota at 1+, Connecticut at 3+, Massachusetts at 6+). Lactation and paid family leave stack on top; they are covered in sibling research rather than duplicated here.
Nothing in the load-bearing federal claims remains unsupported. State-table rows for the high-impact jurisdictions (CA, MN, NJ, NY, MA, IL, CT) are verified against primary or issuing-agency sources. Residual “federal floor only” rows are synthesis labels for the absence of a freestanding state accommodation mandate, not a claim that no other employment law applies.