Minnesota's Local Government Pay Equity Act (1984) — Comparable-Worth Job Evaluation for Public Employers

The Minnesota Local Government Pay Equity Act (Laws 1984, chapter 651) requires local governments to establish equitable compensation relationships between female-dominated, male-dominated and balanced job classes, using a job evaluation system to measure comparable work value. Its stated purpose is to eliminate sex-based wage disparities in public employment. The deadline for establishing equitable relationships was 31 December 1991, and the law has since been amended to require compliance reports to the state legislature, with financial penalties for non-compliance.
An early 1986 report to the legislature found that 69% of jurisdictions had reported and that, of those, 49% identified sex-based pay inequities; those with inequities estimated the correction would cost on average 2.6% of payroll. State reporting since describes the cost of achieving pay equity as consistently around two to four percent of an employer's annual payroll.
The Act is among the longest-running mandatory comparable-worth regimes in the United States, and its key strength is sustained institutional embedding: local governments must re-test and report on a fixed cycle rather than a one-off audit. It applies only to public employers, and to job classes within each jurisdiction, so it does not address gaps between sectors or in the private labour market.
Caveats: official reports (from the state) describe compliance and cost; the sources reviewed did not include an independent causal evaluation of the Act's effect on the gender pay gap, and claims that it 'significantly narrows' the gap come from state publications rather than external studies. Evidence strength should be regarded as moderate-to-low.

Read the full analysis: https://www.revisor.mn.gov/laws/1984/0/651/