{"state":"CO","state_name":"Colorado","county":"boulder","county_name":"Boulder County","testing_required":true,"gas_testing_required":true,"gas_vehicle_min_age":7,"diesel_testing_required":true,"diesel_vehicle_min_age":4,"test_fee_cents":3500,"exemptions":["all-electric vehicles","collector vehicles that qualify under Colorado emissions rules","1975 and older collector vehicles","horseless carriage / kit cars / street rods"],"stations":["Air Care Colorado"],"station_details":[{"label":"Air Care Colorado"}],"source_url":"https://dmv.colorado.gov/gas-vehicles","source_updated_at":"2026-04-23 07:16:49","coverage_status":"partial","confidence_note":"The core Colorado emissions rules are source-backed, but station parsing remains intentionally conservative.","stations_scope":"county","stations_scope_label":"Known stations","help_cta":{"kind":"official_service","headline":"Open the official Boulder 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 emissions program page","href":"https://dmv.colorado.gov/gas-vehicles","placement":"after-official-links","disclosure":"Official emissions program link","tracking_key":"official-emissions-colorado-boulder"}}