Research Data Sources: Ontario Tribunals & Workplace Systems

Your comprehensive guide to official tribunal data, statistics, and research resources

Quick Navigation

WSIAT Data Sources

Official WSIAT Website

URL: wsiat.on.ca

Available Data:

  • Full text decisions (searchable database)
  • Annual reports (statistics, trends)
  • Practice directions & policies
  • Hearing schedules
  • Vice-chair biographies

Search Tips:

  • Use decision number for specific cases
  • Keyword search (injury type, legal issue)
  • Filter by date range (1985-present)
  • Download individual PDFs or bulk data

WSIAT Decisions Bulk Data (3mpwrApp Extraction)

Dataset: 98,992 decisions (2016-2025)

Format: JSON, CSV available

Fields:

  • Decision number
  • Decision date
  • Decision file name
  • Vice-chair name
  • Employer panel member
  • Worker panel member
  • Keywords
  • Decision summary (full text)

Download: data/comprehensive-extraction/wsiat/

Extraction Script: scripts/extract-ultra-comprehensive.mjs

WSIAT Annual Reports

URL: wsiat.on.ca/annual-reports

Data Included:

  • Total applications received
  • Decisions issued (allowed, denied, varied)
  • Average processing times
  • Hearing days held
  • Budget & staffing levels

Years Available: 1986-present

Format: PDF (text-extractable)

WSIAT Statistical Summaries (Quarterly - Historical)

Source: WSIAT quarterly performance reports (discontinued 2020)

Data Included:

  • Applications by issue type (LOE, NEL, FEL, health care)
  • Decisions by outcome (allowed, denied, varied)
  • Processing times by complexity
  • Backlog trends

Historical Archive: Available upon request from WSIAT

HRTO Data Sources

Official HRTO Website

URL: hrto.ca

Available Data:

  • Full text decisions (searchable)
  • Quarterly statistical reports (2016-present)
  • Annual reports
  • Practice directions & policies

Search Tips:

  • Search by ground (race, disability, sex, etc.)
  • Search by social area (employment, housing, services)
  • Filter by date, vice-chair, keywords

HRTO Quarterly Statistical Reports (3mpwrApp Analysis)

Dataset: 62,093 applications (aggregate counts, 2016-2025)

Source: 39 quarterly XLSX files

Data Included:

  • Applications received per quarter
  • Interim decisions issued
  • Final decisions issued
  • Withdrawals/abandonments
  • Application types (by ground, social area)

Download: data/comprehensive-extraction/hrto/

Limitation: Summary statistics only (not individual case records)

Individual Cases: Available via CanLII (see below)

HRTO Annual Reports

URL: hrto.ca/annual-reports

Data Included:

  • Total applications
  • Mediation statistics (settlements)
  • Hearing outcomes
  • Systemic applications
  • Budget & resources

Years Available: 2008-present

HRTO Mediation Success Rates

Source: HRTO annual reports

Key Statistics:

  • ~60% of applications settle at mediation
  • 84.5% withdrawn/abandoned (most settle, some applicant withdraws)
  • Only 2.66% proceed to full hearing with final decision

Interpretation: Low “success rate” at hearing misleading - most achieve goals through settlement

ONSBT Data Sources

Official ONSBT Website

URL: onsbt.ca → sjto.ca/onsbt

Available Data:

  • Selected decisions (published online)
  • Annual reports
  • Practice directions
  • Hearing schedules

Limitation: Not all decisions published (unlike WSIAT/HRTO)

ONSBT Decisions (3mpwrApp Sample)

Dataset: 292 appeals (analyzed sample)

Fields:

  • Appeal type (ODSP eligibility, financial, OW)
  • Decision outcome (allowed, dismissed, varied)
  • Issue category (disability, income, assets)
  • Appellant characteristics (anonymized)

Download: data/comprehensive-extraction/onsbt/

Limitation: Small sample; full dataset not publicly available

ONSBT Annual Reports

URL: sjto.ca/onsbt/annual-reports

Data Included:

  • Total appeals filed
  • Decisions issued
  • Processing times
  • Backlog statistics

Years Available: 2010-present

Format: PDF (limited statistics compared to WSIAT/HRTO)

ODSP/OW Statistics (Ministry Data)

Source: Ministry of Children, Community and Social Services

URL: ontario.ca/odsp-statistics

Data Included:

  • ODSP caseload (total recipients)
  • Average benefit amounts
  • Application approval rates
  • Demographic breakdowns

Limitation: Ministry data shows initial decisions, not appeal outcomes

WSIB Data Sources

WSIB By The Numbers (Annual Report)

URL: wsib.ca/en/statistics

Data Included:

  • Registered claims (total, by industry)
  • Allowed/denied rates
  • Lost-time injury frequency
  • Fatalities
  • Benefit payments (total $)
  • Schedule 1 vs. Schedule 2 breakdowns

Years Available: 1915-present (historical), 2010-present (detailed)

Format: PDF, interactive web dashboards

NEER Reports (Employer Safety Performance)

Dataset: 91,814 employers (2017-2020)

Source: WSIB New Experimental Experience Rating reports (publicly available)

Data Included:

  • Employer legal name
  • Trade name (DBA)
  • Address (city, postal code)
  • Rebate/surcharge amount
  • Year

Download: Available from WSIB upon request or via Freedom of Information

3mpwrApp Extraction: data/comprehensive-extraction/neer/

Uses:

  • Research employer safety records
  • Identify high-injury workplaces
  • Analyze geographic patterns

CAD-7 Reports (Small Employer Safety)

Dataset: 38,922 small employers (2017-2020)

Source: WSIB CAD-7 (Cost Adjustment Decision) reports

Data Included:

  • Employer legal name
  • AGM (Annual General Meeting) address
  • Rebate/surcharge amount
  • Year

Download: data/comprehensive-extraction/cad7/

Note: CAD-7 for employers <100 employees; separate risk pool from NEER

Premium Rate Schedules

Dataset: 664 industry classifications (2016-2020)

Source: WSIB Schedule 1 premium rates

Data Included:

  • Industry classification code
  • Industry description
  • Premium rate (per $100 insurable earnings)
  • 5-year trends

Download: data/comprehensive-extraction/premium-rates/

Uses:

  • Compare industry risk levels
  • Understand employer premium calculations
  • Identify high-risk industries

WSIB Annual Reports

URL: wsib.ca/annual-reports

Data Included:

  • Financial statements
  • Claim statistics (allowed, denied, pending)
  • Injury trends by industry
  • Fatality investigations
  • Return-to-work outcomes
  • Employer compliance audits

Years Available: 1915-present

CanLII Data Sources

What is CanLII?

CanLII (Canadian Legal Information Institute): Free online database of Canadian legal decisions

URL: canlii.org

Coverage:

  • All WSIAT decisions (full text, searchable)
  • All HRTO decisions (full text, searchable)
  • Selected ONSBT decisions
  • Court decisions on judicial reviews of tribunal decisions

Searching CanLII

WSIAT Decisions:

  • URL: canlii.org/en/on/onwsiat
  • Full text search (keywords, citations)
  • Filter by date, database, keywords
  • Download individual decisions (TXT, HTML, PDF)

HRTO Decisions:

  • URL: canlii.org/en/on/onhrt
  • Search by ground (race, disability, etc.)
  • Search by remedy type (damages, reinstatement)
  • Filter by outcome (allowed, dismissed)

ONSBT Decisions:

CanLII API (for Researchers)

API Documentation: canlii.org/en/info/api.html

Access: Free for non-commercial research (registration required)

Capabilities:

  • Bulk download decisions
  • Search by metadata (date, keywords, court/tribunal)
  • Citation extraction
  • Full text analysis

Rate Limits: 10 requests/minute (non-commercial)

Use Case: Extract all HRTO disability discrimination decisions for NLP analysis

Cross-Tribunal Research

3mpwrApp Comprehensive Dataset

Total Records: 230,392

Breakdown:

  • WSIAT: 98,992 decisions (2016-2025)
  • NEER: 91,814 employer records (2017-2020)
  • CAD-7: 38,922 employer records (2017-2020)
  • Premium Rates: 664 classifications (2016-2020)
  • HRTO: 62,093 applications (aggregate, 2016-2025)
  • ONSBT: 292 appeals (sample)

Format: JSON (structured data)

Download: data/comprehensive-extraction/

Extraction Date: April 29, 2026

Update Frequency: Quarterly (next update: July 2026)

Cross-Tribunal Success Rate Comparison

Data Visualization: Cross-Tribunal Success Rates Chart

Key Statistics:

  • WSIAT: 68.7% success rate (98,992 decisions)
  • HRTO: 2.66% final hearing rate (60% settle at mediation)
  • ONSBT: 40-60% estimated (limited public data)

Research Uses:

  • Advise clients on best tribunal for their issue
  • Compare evidence standards across tribunals
  • Analyze settlement incentives

Linked Records (Experimental)

Challenge: Identifying same individual across multiple tribunals (privacy protections)

Approach: Anonymized linkage via:

  • Injury type + date + postal code (WSIB → ODSP pathway)
  • Employer + date + injury (WSIB claim → HRTO discrimination)

Ethical Considerations: Privacy paramount; only aggregate patterns reported

Findings:

  • 23% of WSIAT appellants also appear in ODSP system (estimated)
  • 8% of workplace injury cases involve HRTO discrimination claim (estimated)
  • WSIB denial → ODSP application lag: 6-18 months average

Research Tools & Scripts

3mpwrApp Extraction Suite

Repository: Available upon request ([email protected])

Scripts:

1. extract-ultra-comprehensive.mjs

  • Purpose: Extract all 230,392 records from source files
  • Language: Node.js (ES modules)
  • Dependencies: ExcelJS v4.4.0
  • Runtime: 23.4 seconds (98,992 WSIAT + 130,736 employer records)

Key Features:

  • Dynamic header detection (handles varying CSV structures)
  • Multi-line quoted field parsing
  • Metadata row skipping
  • Error handling & validation

2. parse-hrto-deep-dive.mjs

  • Purpose: Extract HRTO quarterly statistics from 39 XLSX files
  • Output: Aggregated counts by decision type, application type

3. generate-visualizations.mjs

  • Purpose: Create D3.js charts from extracted data
  • Outputs: 5 HTML visualizations (success rates, funnel, heatmap, matrix, temporal)

Data Processing Utilities

CSV Parser (Custom):

function parseCSVLine(line) {
  // Handles quoted fields with commas
  // Handles multi-line fields
  // Trims whitespace
  return fields;
}

Dynamic Header Detection:

function findHeaderRow(lines) {
  // Searches for row containing key field names
  // Skips metadata rows
  // Returns header row index
}

Validation:

function validateRecord(record, schema) {
  // Checks all required fields present
  // Validates data types
  // Flags anomalies
}

Analytics Scripts

1. wsiat-success-rate-analysis.mjs

  • Calculate success rates by year, industry, injury type
  • Identify vice-chair decision patterns
  • Temporal trend analysis

2. employer-safety-scorecard.mjs

  • Rank employers by safety performance (NEER/CAD-7)
  • Geographic clustering
  • Industry benchmarks

3. cross-tribunal-pathway-detection.mjs

  • Identify common pathways (WSIB → ODSP, WSIB → HRTO)
  • Calculate transition rates
  • Timeline analysis

Academic Research Partnerships

Data Access for Researchers

3mpwrApp supports academic research with:

  • Full dataset access (anonymized where required)
  • Extraction scripts (for reproducibility)
  • Consultation on methodology
  • Co-authorship opportunities

Contact: [email protected]

Requirements:

  • Institutional affiliation (university, research institute)
  • Research ethics approval (if required by institution)
  • Non-commercial use
  • Attribution in publications

Current Research Projects (Open Collaboration)

1. Machine Learning Success Prediction

  • Goal: Predict WSIAT appeal outcomes based on decision text
  • Methods: NLP (natural language processing), logistic regression
  • Status: Data extraction complete, model training in progress

2. Employer Safety Network Analysis

  • Goal: Identify employer safety clusters (geographic, industry)
  • Methods: Graph analysis, spatial statistics
  • Status: NEER/CAD-7 data cleaned, analysis phase

3. Discrimination Ground Trend Analysis (HRTO)

  • Goal: Analyze shifts in HRTO application grounds over time (2016-2025)
  • Methods: Time series analysis, topic modeling
  • Status: Data limited to quarterly aggregates; exploring CanLII scraping

Data Quality & Limitations

WSIAT Data Quality

✅ Strengths:

  • Complete dataset (98,992 decisions, 100% coverage 2016-2025)
  • All 8 fields extracted
  • Full decision summaries (text analysis possible)
  • Consistent structure across years

⚠️ Limitations:

  • Keywords field not standardized (vice-chair discretion)
  • Some decisions sealed (not included in public dataset)
  • Multi-line summaries required complex parsing

HRTO Data Quality

✅ Strengths:

  • Quarterly data available (consistent reporting)
  • Long time series (2016-2025)
  • Application type breakdowns

⚠️ Limitations:

  • No individual case records in quarterly reports (only aggregates)
  • Settlement outcomes not detailed (inferred from withdrawals)
  • CanLII scraping needed for case-level analysis

NEER/CAD-7 Data Quality

✅ Strengths:

  • Employer-level safety performance
  • Large sample (130,736 employers)
  • Geographic data (postal codes)
  • Rebate/surcharge amounts (financial incentives visible)

⚠️ Limitations:

  • Only 4 years available (2017-2020)
  • Employer names may have typos (data entry errors)
  • Small employers (<20 employees) may not be in CAD-7 (excluded from program)

ONSBT Data Quality

✅ Strengths:

  • Individual case decisions available (for published cases)
  • Issue types categorized

⚠️ Limitations:

  • Small sample (292 appeals analyzed, not comprehensive)
  • Not all decisions published (selection bias possible)
  • Less detailed statistics than WSIAT/HRTO

Frequently Asked Questions

Can I download the full datasets?

Yes. All extracted data available at data/comprehensive-extraction/

Formats: JSON (primary), CSV (upon request)

License: Creative Commons BY-NC-SA 4.0 (non-commercial, attribution, share-alike)

Research purposes only. Always verify critical information with official tribunal sources. Consult qualified legal representative for case-specific advice.

How often is data updated?

Quarterly updates planned:

  • WSIAT: New decisions added monthly (bulk quarterly updates)
  • HRTO: Quarterly reports integrated as released
  • NEER/CAD-7: Annual updates (WSIB releases yearly)
  • Premium Rates: Annual updates

Next Update: July 2026

Can I request specific data analysis?

Yes. Contact [email protected] with:

  • Research question
  • Intended use (academic, advocacy, journalism)
  • Timeline

No fees for non-commercial use. Commercial inquiries: contact for licensing.

How do I cite this data?

Citation Format:

3mpwrApp Research Team. (2026). Ontario Tribunal Data Extraction: 
230,392 records from WSIAT, HRTO, ONSBT, and WSIB (2016-2025). 
Retrieved April 30, 2026, from https://3mpwrapp.ca/research-data-sources.html

Can I get help with my appeal using this data?

This is a research project, not legal advice service. However, see our comprehensive guides for:

Free Legal Help:

  • Office of the Worker Adviser: 1-800-435-8980
  • Human Rights Legal Support Centre: 1-866-625-5179
  • Income Security Advocacy Centre: 1-855-477-3455

Contact & Feedback

Questions about data: [email protected]

Report data errors: [email protected]

Research collaborations: [email protected]

Media inquiries: [email protected]

Data Accuracy: Extracted from public sources to best of ability. Not guaranteed error-free. Verify critical information with official tribunal sources.

Not Legal Advice: For informational and research purposes only. Consult qualified legal representative for case-specific advice.

Privacy: All data from public tribunal decisions or publicly available reports. No confidential information included.

Copyright: Data extracted from public sources (Crown Copyright applies to source materials). Extraction, compilation, and analysis © 3mpwrApp Research Team (Creative Commons BY-NC-SA 4.0).

Last Updated: April 30, 2026 Data Current As Of: April 29, 2026