Dangerous Part-Time Jobs and Work Restrictions

This page lists types of part-time work identified as dangerous, including construction, driving and delivery, hazardous materials, machinery, work at heights, and railway or busy-road work.

Restrictions shared by the 2025 System Design and Engineering Faculty and 2026 Engineering Faculty, Division II

The following work is listed as involving danger: work at construction sites, building demolition, clearing leftover construction materials, and work at civil-engineering or waterworks construction sites. Work for which wearing a helmet is required is also listed as involving danger.

2025 System Design and Engineering Faculty

The following work is listed as involving danger: driving cars or motorcycles; delivering goods weighing 30 kg or more by bicycle; working inside railway tracks or on roads with frequent traffic, including surveying, painting road lines, and traffic control; and outdoor work at heights of two storeys or higher, such as window-glass cleaning and equipment installation.

2025 Engineering Faculty, Division II

The following work is listed as involving danger or as restricted work: work at construction sites in buildings under construction, building demolition, and cleanup of leftover materials; work at civil-engineering or waterworks construction sites; driving cars or motorcycles; delivering heavy items weighing 30 kg or more by bicycle; handling high-voltage electricity, high-pressure gas, or other dangerous materials, including assisting with such handling; outdoor work at heights of two storeys or higher, such as window cleaning and equipment installation; operating automatic machinery such as presses, drill presses, lathes, and cutting machines; working inside railway tracks or on roads with frequent traffic, including surveying, painting road lines, and traffic control; and work for which wearing a helmet is required. The construction work is associated with a high risk of falling objects and falls. Driving and delivery work is identified as dangerous because of severe traffic conditions and the financial and psychological burden, including possible criminal liability, if an accident occurs. Hazardous-materials work requires a licence and involves a high degree of danger.

2026 Engineering Faculty, Division II

The following work is listed as involving danger: work at building-construction sites, building demolition, and clearing leftover materials; driving cars or motorcycles; delivering heavy goods weighing 30 kg or more by bicycle; handling high voltage, high-pressure gas, or other hazardous materials, including assisting with such handling; outdoor work at heights of two storeys or higher, such as window washing and equipment installation; and working inside railway tracks or on roads with frequent traffic, including surveying, painting road lines, and directing traffic.

Official sources

The following official Tokyo Denki University materials were used to prepare this page.