{"state":"NJ","state_name":"New Jersey","county":"mercer","county_name":"Mercer County","testing_required":true,"gas_testing_required":true,"gas_vehicle_min_age":6,"gas_model_year_min":1996,"diesel_testing_required":true,"diesel_vehicle_min_age":6,"diesel_model_year_min":1997,"diesel_vehicle_max_gvwr_lbs":8500,"test_fee_cents":0,"exemptions":["gasoline vehicles under five model years old","gasoline vehicles model year 1995 and older","diesel vehicles model year 1996 and older or over 8,500 pounds GVWR","electric vehicles","motorcycles"],"stations":[],"station_details":[],"source_url":"https://www.nj.gov/mvc/inspection/inspecthow.htm","source_updated_at":"2026-04-23 07:19:24","coverage_status":"partial","confidence_note":"Rule thresholds are source-backed, but current station coverage is delegated to an official live finder rather than a normalized station list.","stations_scope":"official_finder","stations_scope_label":"Official inspection resources","stations_note":"New Jersey inspection rules apply statewide, and current Mercer County station availability is delegated to the official MVC inspection resources.","station_locator_url":"https://www.nj.gov/mvc/inspection/inspecthow.htm","help_cta":{"kind":"official_service","headline":"Open the official Mercer County testing workflow","body":"PlateHarbor mapped the main county testing rules and finder coverage. Use the official source or locator before you schedule a test or travel to a station.","label":"Open official station finder","href":"https://www.nj.gov/mvc/inspection/inspecthow.htm","placement":"after-official-links","disclosure":"Official station finder","tracking_key":"official-emissions-new-jersey-mercer"}}