Revises certain laws governing police and fire interest arbitration.

S 4521 revises New Jersey's laws governing interest arbitration for police and fire departments, affecting municipalities, police/fire unions, and public employers. The bill requires both parties to exchange detailed salary information before arbitration, including specific employee salary data, and establishes new deadlines for information sharing. It extends the arbitrator's decision timeline from 90 to 150 days (with a possible 30-day extension), increases arbitration costs from $1,000 to $1,500 per day (with a total cap raised to $15,000), and extends the appeal period from 14 to 21 days. The bill also repeals three sections of existing law that previously limited arbitration awards and established a Police and Fire Interest Arbitration Impact Task Force.