Malta OHSA Administrative Instrument No. 2 of 2025 (in force 2025-07-23), under the Health and Safety at Work Act (Cap. 646). Construction work in direct sunlight only. Standing baseline duties at all times (hydration stations, cool-down breaks, UV shelters, high-SPF sunscreen, light clothing — shirtless work prohibited). At ambient ≥40°C (Met Office, Luqa) the project supervisor must reassess site conditions; possible outcomes include partial/temporary suspension of works in direct sunlight.
No standalone formula is published for this standard; see programmable logic and parameters below.
Governing metric: Ambient dry-bulb air temperature (°C), official Met Office reading — construction only
| Parameter | Value |
|---|---|
triggerThresholdC | 40 |
Programmable logic: Construction-scoped: if industry is provided and is not 'construction', not applicable. Below 40°C: baseline duties. At/above 40°C (§6.3): mandatory supervisor reassessment with measures that MAY include shaded rest, more hydration breaks, rescheduling, or partial/temporary suspension of works in direct sunlight — discretionary, NOT an automatic stop-work flag.
Required inputs: none
Optional inputs: airTempC, industry, outdoor
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Get notified when Malta OHSA Construction Heat-Stress Instrument (Admin Instrument No. 2 of 2025) changes — threshold changes, scope and legal-status changes, additions and removals. Changes that permit more heat exposure than before are labelled as such.
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