We checked the final-paycheck deadline calculator against data.ts, unit tests, the public methodology page, and the finalized research:final-paycheck-laws-by-state state-by-state table (51 jurisdictions). Every state constant was copied from that table; high-impact notice branches (CA, OR, HI) and representative discharge/quit samples were verified claim-by-claim. No invented statutes.
Verification result: checked claims are verified for publication. Scope caveats: calendar dates are optional estimates (weekends only, no holidays); penalty line is a summary, not dollar math (sibling tool for 7 modeled states).