Background of the Reform
Japan's Occupational Safety and Health Act traditionally protected only "workers" in employment relationships. However, sole proprietors — such as independent construction workers and freelance IT engineers — face identical workplace hazards without legal protection. The 2026 amendments extend coverage to these individuals.
Key Changes
April 2026 Enforcement
| Item | Details |
|---|---|
| Sole proprietor protection | Added as beneficiaries of workplace safety measures |
| Expanded client duties | Clients must take steps to ensure individual workers' safety |
| Hazardous work restrictions | Protective measures for organic solvents and chemicals now apply to sole proprietors |
October 2026 Enforcement
| Item | Details |
|---|---|
| Safety training | Mandatory safety education for sole proprietors in hazardous work |
| Health checkups | Best-effort obligation for sole proprietors in dangerous occupations |
| Reporting | Serious injuries to sole proprietors must now be reported |
New Obligations for Clients and Contractors
Entities commissioning work now bear expanded duties:
Required Measures
- Safe work environment: Provide scaffolding, safety harnesses, and protective equipment
- Hazard information: Communicate workplace dangers in advance
- Work procedures: Instruct on safe working methods
- Mixed-work management: Manage safety when employees and sole proprietors share a site
Penalties for Violations
Clients who fail to implement safety measures face fines up to ¥500,000 under Articles 119–120 of the Occupational Safety and Health Act.
Obligations for Sole Proprietors
Individual workers also gain responsibilities:
- Use provided protective equipment properly
- Attend safety training for hazardous work (best-effort obligation)
- Undergo health checkups when engaged in dangerous work (best-effort)
- Follow safety procedures as instructed
Impact on Freelancers
For freelancers in IT and creative fields, the direct impact is more limited than in construction. However, clients' duty of care now extends to areas such as preventing health damage from excessive working hours. Combined with the Freelance Protection Act (effective November 2024), these reforms represent a significant expansion of workplace protections for independent workers in Japan.
