Night-Worker Health Protection Measures Pushed to Year-End — What Shift-Based Manufacturing and Logistics SMEs Should Check Now, from Night-Work Special Health Exams to Rota Design

Why the Government Is Singling Out Night Work

Korea's Ministry of Employment and Labor has said it will prepare health protection measures for night workers in the second half of this year as part of its roadmap to cut actual working hours. The original target was September. On August 24, the roadmap's 9th implementation review meeting brought in night workers from healthcare, care services, manufacturing, logistics and delivery to hear from them directly.

The problems they raised differed by sector. Hospital and care workers said they don't get enough rest and sleep. Logistics and delivery workers pointed to fatigue building up and raising the risk of accidents. As of this writing, the final measures have not been published. This article therefore separates obligations already in force from directions still under discussion.

Already Mandatory: Night-Work Special Health Examinations

Some obligations apply today, whatever the new measures say. Under the Occupational Safety and Health Act, a worker is covered if, over a six-month period, they either (1) work eight continuous hours that include the window from midnight to 5 a.m., at least four times a month on average, or (2) work 60 hours or more a month on average between 10 p.m. and 6 a.m.

Pre-placement exam: required before the worker is assigned to night work

Periodic special exams: the first within six months of placement, then at least once every 12 months

Non-compliance: fines can apply, and they grow with the number of workers affected

SMEs most often miss this obligation in three ways:

A new hire goes straight onto the night shift without a pre-placement exam

The company doesn't track whether dispatched or subcontracted workers are doing night work

Shift teams are reorganized but the list of covered workers is never updated

Under Discussion: Issues the Measures May Address

The items below are not confirmed obligations. They are issues worth reviewing now so you are prepared.

Managing night-work hours: limits on consecutive night shifts and minimum rest between shifts. The EU Working Time Directive, for example, guarantees 11 consecutive hours of rest in every 24-hour period

Guaranteed rest and sleep time, plus staffing standards for night shifts

Sector-specific approaches: manufacturing and logistics face different problems from healthcare and care services, so the rules may differ by sector

Redesigning Shift Rotas in Practice

A position staffed around the clock, every day of the year, needs 168 hours of coverage a week. Here is how that load falls on each worker under different shift systems:

Two teams, two shifts: about 84 hours per worker per week, which exceeds the legal cap. It also means the longest runs of consecutive nights

Three teams, two shifts: 12-hour shifts and about 56 hours per worker per week. Overtime has to be managed closely

Four teams, three shifts: 8-hour shifts and about 42 hours per worker per week. It needs roughly 33% more staff than a three-team system, but makes rest between shifts much easier to guarantee

Two design principles are widely recommended: forward rotation (day → evening → night) and no more than three consecutive night shifts.

Labor costs need to be part of the calculation. Workplaces with five or more regular employees must pay a 50% premium on ordinary wages for night work. For a worker earning KRW 12,000 an hour, seven hours in the night window adds KRW 42,000 per shift, or about KRW 340,000 a month over eight night shifts. When night work overlaps with overtime, the premiums stack, so get your working-time records in order first.

Preventing Night-Time Accidents Through Risk Assessment

Include fatigue and drowsiness as hazards in your risk assessment, and keep solo night work to a minimum

Appoint a night-shift supervisor and put emergency contact and response procedures in writing

Use public support: counseling at KOSHA's Workers' Health Centers and accident-prevention consulting can cut the cost of compliance

KITIM's 90-Day Readiness Checklist

Phase 1 (days 1–30): List every night worker and their shift pattern, and check whether required special health exams have been done

Phase 2 (days 31–60): Draft revised rotas, rest-break rules and work regulations

Phase 3 (days 61–90): Once the measures are announced, compare their requirements with where you stand, and build a management system linked to ISO 45001 occupational health and safety management

KITIM supports shift-based manufacturers and logistics companies end to end: night-work diagnostics, rota redesign, updated work regulations and ISO 45001 certification. If you'd like to know how ready your company is before the measures arrive, request a consultation with KITIM.

Night-Worker Health Protection Measures Pushed to Year-End — What Shift-Based Manufacturing and Logistics SMEs Should Check Now, from Night-Work Special Health Exams to Rota Design

Why the Government Is Singling Out Night Work

Already Mandatory: Night-Work Special Health Examinations

Under Discussion: Issues the Measures May Address

Redesigning Shift Rotas in Practice

Preventing Night-Time Accidents Through Risk Assessment

KITIM's 90-Day Readiness Checklist

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