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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:

Search Tips:

WSIAT Decisions Bulk Data (3mpwrApp Extraction)

Dataset: 99,036 decisions (2016-2025)

Format: JSON, CSV available

Fields:

Download: [data/comprehensive-extraction/wsiat/)

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

WSIAT Annual Reports

URL: wsiat.on.ca/annual-reports

Data Included:

Years Available: 1986-present

Format: PDF (text-extractable)

WSIAT Statistical Summaries (Quarterly - Historical)

Source: WSIAT quarterly performance reports (discontinued 2020)

Data Included:

Historical Archive: Available upon request from WSIAT

HRTO Data Sources

Official HRTO Website

URL: hrto.ca

Available Data:

Search Tips:

HRTO Quarterly Statistical Reports (3mpwrApp Analysis)

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

Source: 39 quarterly XLSX files

Data Included:

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:

Years Available: 2008-present

HRTO Mediation Success Rates

Source: HRTO annual reports

Key Statistics:

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:

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

ONSBT Decisions (3mpwrApp Sample)

Dataset: 292 appeals (analyzed sample)

Fields:

Download: [data/comprehensive-extraction/onsbt/)

Limitation: Small sample; full dataset not publicly available

ONSBT Annual Reports

URL: sjto.ca/onsbt/annual-reports

Data Included:

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:

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:

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:

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

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

Uses:

CAD-7 Reports (Small Employer Safety)

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

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

Data Included:

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:

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

Uses:

WSIB Annual Reports

URL: wsib.ca/annual-reports

Data Included:

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:

Searching CanLII

WSIAT Decisions:

HRTO Decisions:

ONSBT Decisions:

CanLII API (for Researchers)

API Documentation: github.com/canlii/API_documentation

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

Capabilities:

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

Use Case: Extract all WSIAT/HRTO/ONSBT decisions for pattern analysis

✅ CanLII Confirmation — May 2026: We contacted CanLII directly regarding outcome data availability. CanLII confirmed: “CanLII doesn’t provide any data further than what’s provided by its API.” This confirms our published methodology — outcome classification in this research is inferred from keyword patterns in decision text, not from any outcome field in the API (which does not exist). All 230,392 records in our dataset were collected via authorized API calls, consistent with CanLII’s Terms of Use. Bulk or systematic website downloading is prohibited under CanLII ToU; API access is the authorized method we used.

What the API provides: Case metadata (case number, date, keywords, citation, title, tribunal database ID). What the API does not provide: Outcome labels, decision summaries, or structured outcome fields — consistent with our “model artifact” disclosures throughout this site.

Cross-Tribunal Research

3mpwrApp Comprehensive Dataset

Total Records: 230,392

Breakdown:

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:

Research Uses:

Linked Records (Experimental)

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

Approach: Anonymized linkage via:

Ethical Considerations: Privacy paramount; only aggregate patterns reported

Findings:

Research Tools & Scripts

3mpwrApp Extraction Suite

Repository: Available upon request (email protected

Scripts:

1. extract-ultra-comprehensive.mjs

Key Features:

2. parse-hrto-deep-dive.mjs

3. generate-visualizations.mjs

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

2. employer-safety-scorecard.mjs

3. cross-tribunal-pathway-detection.mjs

Academic Research Partnerships

Data Access for Researchers

3mpwrApp supports academic research with:

Contact: [email protected]

Requirements:

Current Research Projects (Open Collaboration)

1. Machine Learning Success Prediction

2. Employer Safety Network Analysis

3. Discrimination Ground Trend Analysis (HRTO)

Data Quality & Limitations

WSIAT Data Quality

✅ Strengths:

⚠️ Limitations:

HRTO Data Quality

✅ Strengths:

⚠️ Limitations:

NEER/CAD-7 Data Quality

✅ Strengths:

⚠️ Limitations:

ONSBT Data Quality

✅ Strengths:

⚠️ Limitations:

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:

Next Update: July 2026

Can I request specific data analysis?

Yes. Contact [email protected] with:

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:

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