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Saudi MHRSD Heat Stress Rule — Heat Stress Work/Rest Limits

Saudi Arabia combines a summer midday ban with heat-index-based break requirements and a stop-work threshold.

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Governing metric
Heat Index / date and time
Authority
Saudi Ministry of Human Resources and Social Development
Jurisdiction
Saudi Arabia
Legal status
Regulation
In force since
2021-06-10 (unverified)
Rule type
Mixed Trigger Schedule
Standard ID
HGC-014

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Governing formula

No standalone formula is published for this standard; see programmable logic and parameters below.

Work/rest limits

Scenario: outdoor, sun-exposed work · representative date: the 15th of each month · time: 13:00

MonthBan active?Banned hours
JanuaryNo—
FebruaryNo—
MarchNo—
AprilNo—
MayNo—
JuneYes12:00–15:00
JulyYes12:00–15:00
AugustYes12:00–15:00
SeptemberYes12:00–15:00
OctoberNo—
NovemberNo—
DecemberNo—

Inputs

Required inputs: date

Optional inputs: time, shiftStart, shiftEnd, outdoorSunExposed, outdoor, heatIndexC, heatIndexF, airTempC, relativeHumidity

Sources

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