{"slug":"ca-ontario-working-for-workers-four-act-ai-in-job-postings","title":"Working for Workers Four Act, 2024 (Bill 149): disclosure of artificial intelligence use in publicly advertised job postings","short_title":"Ontario Working for Workers Four Act (AI disclosure in job postings)","jurisdiction":"ca-ontario","instrument_type":"act","status":"in_force","is_binding":true,"issuing_body":"Legislative Assembly of Ontario","summary_plain":"Amends the Employment Standards Act, 2000 to require employers with 25 or more employees to disclose in every publicly advertised job posting whether artificial intelligence is used to screen, assess or select applicants, alongside new rules on salary ranges and Canadian-experience requirements. The AI disclosure requirement is in force from 1 January 2026.","adopted_on":"2024-03-21","in_force_on":"2026-01-01","applies_from":"2026-01-01","official_source_url":"https://www.ola.org/en/legislative-business/bills/parliament-43/session-1/bill-149","last_verified_at":null,"review_status":"pending_review","confidence_level":"high","updated_at":"2026-09-11T14:52:59+00:00","url":"https://aipolicytracker.org/policies/ca-ontario-working-for-workers-four-act-ai-in-job-postings","status_note":null,"scope_summary":"Employers in Ontario with 25 or more employees publishing public job postings.","who_it_applies_to":null,"key_dates_summary":"2024-03-21: royal assent; 2026-01-01: job-posting provisions in force.","penalties_summary":null,"what_organizations_must_do":null,"published_on":null,"date_notes":"Dates are taken from the linked official source; a reviewer should confirm in-force and application dates before relying on them.","taxonomy":{"actor":["deployer"],"ai_system_type":["automated_decision_system"],"sector":["employment"],"risk_category":["transparency_risk"],"use_case":["hiring_and_hr"]},"sections":[],"obligations":[],"applicability_rules":[],"deadlines":[],"versions":[],"enforcement_events":[],"procurement_rules":[],"sources":[{"title":"Bill 149, Working for Workers Four Act, 2024","publisher":"Legislative Assembly of Ontario","url":"https://www.ola.org/en/legislative-business/bills/parliament-43/session-1/bill-149","document_date":"2024-03-21","document_type":"legislation","tier":1,"tier_label":"Official primary source (government, legislature, regulator, court, standards body, intergovernmental)"}],"related_policies":[],"related_frameworks":[],"faq":[],"source":{"official_source_url":"https://www.ola.org/en/legislative-business/bills/parliament-43/session-1/bill-149","source_title":"Bill 149, Working for Workers Four Act, 2024","source_publisher":"Legislative Assembly of Ontario","source_document_date":"2024-03-21","source_reference":null,"source_tier":1,"last_checked_at":"2026-09-11","last_verified_at":null,"review_status":"pending_review","confidence_level":"high","content_version":1,"change_summary":"Added in the September 2026 global coverage expansion from the official source listed; reviewer to confirm dates, status and scope against the source text.","reviewed_by":null}}