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All Standards (128)
Every occupational heat-stress and wildfire-smoke standard tracked by this calculator, grouped by rule type. See also guidance by country and standards under review.
Work/rest limits (34)
Work/rest limits (8)
- Czech Government Regulation No. 361/2007 Coll. — Occupational Heat Load (Annex 1 Part A) — Government of Czechia; methodology by Státní zdravotní ústav (SZÚ), enforced by Krajské hygienické stanice
- Finland Työsuojelu Kuumatyö (Hot Work) Indoor Break Schedule — Työsuojeluhallinto (Finnish Occupational Safety and Health Administration), guidance developed jointly with Työterveyslaitos (Finnish Institute of Occupational Health, FIOH)
- Malta OHSA Construction Heat-Stress Instrument (Admin Instrument No. 2 of 2025) — Occupational Health and Safety Authority (OHSA), Malta
- Saudi MHRSD Heat Stress Rule — Saudi Ministry of Human Resources and Social Development
- Singapore MOM / WSH (WBGT ≥ 32°C) — Singapore Ministry of Manpower
- Slovenia Workplace Heat Rules (Pravilnik, Uradni list RS 53/2025) — Ministry of Labour, Family, Social Affairs and Equal Opportunities (MDDSZ), Slovenia
- South Korea MoEL Heat-Work Rule — Ministry of Employment and Labor (South Korea)
- Ukraine ДСН 3.3.6.042-99 — Sanitary Norms for Microclimate of Industrial Premises — Ministry of Health of Ukraine, Chief State Sanitary Doctor (Постанова № 42, 1999-12-01)
Alert levels (9)
Control measures (50)
- Algeria Decret Executif 91-05 General Duty — Journal Officiel de la Republique Algerienne Democratique et Populaire (N Deg 04, 23 janvier 1991)
- Armenia Labour Code Art. 153 — Special Breaks Above +40 °C — National Assembly of Armenia (Labour Code); Ministry of Health (heat advisories)
- Austria Hitzeschutzverordnung 2026 — Republic of Österreich / BMASGPK (Hitze-V, BGBl. II Nr. 325/2025)
- Bulgaria Naredba № RD-07-3 of 18.07.2014 — Minimum Requirements for the Microclimate of Workplaces — Minister of Labour and Social Policy / Minister of Health, Republic of Bulgaria
- Cal/OSHA Indoor Heat Illness Prevention (Title 8 §3396) — California Division of Occupational Safety and Health
- Cal/OSHA Outdoor Heat Illness Prevention (Title 8 §3395) — California Division of Occupational Safety and Health
- Canada Occupational Health and Safety Regulations — Thermal Stress Procedures (SOR/2026-10, COHSR s. 10.19.3) — Employment and Social Development Canada (Labour Program), under the Canada Labour Code Part II
- Colorado Agricultural Labor Conditions Rules (7 CCR 1103-15 Rule 3) — Colorado Department of Labor and Employment
- CPWR / OSHA-CPWR Construction Heat Overlay — CPWR / OSHA-CPWR Alliance
- Croatia Pravilnik o zaštiti na radu za mjesta rada (NN 105/2020) — Workplace Climate Duties — Ministarstvo rada, mirovinskoga sustava, obitelji i socijalne politike, Croatia; public-health guidance issued by the competent institute for occupational medicine (Hrvatski zavod za javno zdravstvo, HZJZ)
- Denmark Arbejdstilsynet Indoor-Climate Temperature Guidance — Arbejdstilsynet (Danish Working Environment Authority)
- Ecuador Norma Técnica de Seguridad e Higiene del Trabajo — Art. 8 Heat (WBGT Ceilings) — Ministerio del Trabajo del Ecuador (Acuerdo Ministerial MDT-2024-196, Anexo 3; parent Decreto Ejecutivo Nro. 255)
- Estonia Töötervishoiu ja tööohutuse seadus § 6(4) — Indoor Climate Duty — Sotsiaalministeerium (Ministry of Social Affairs) / Tööinspektsioon (Labour Inspectorate), Estonia
- EU Framework Directive 89/391/EEC — European Union
- France Decret n° 2025-482 Heat Duties — Government of France / Legifrance
- Germany ASR A3.5 Room Temperature Rule — BAuA / Germany Federal Ministry of Labour and Social Affairs
- Germany ASTA Outdoor Heat Recommendation (Beurteilungstemperatur) — Ausschuss für Sicherheit und Gesundheit bei der Arbeit an Arbeitsstätten (ASTA) / BAuA, Germany
- Hungary 3/2002 SzCsM-EüM — Minimum Health and Safety Requirements for Workplaces (Climate Provisions) — Szociális és Családügyi Minisztérium (SzCsM) / Egészségügyi Minisztérium (EüM), Hungary; §7(8a)/(8b) inserted by 63/2023. (XII. 28.) GFM rendelet, Gazdaságfejlesztési Minisztérium
- Ireland General Application Regulations 2007 Reg. 7 — Room Temperature Duty — Health and Safety Authority (HSA), Ireland
- Italy Regional Anti-Heat Ordinances (Lazio, Lombardy, Piedmont, Campania) — Regione Lazio; Regione Lombardia; Regione Piemonte; Regione Campania (INAIL/CNR Worklimate risk trigger)
- Italy Worklimate / Regional Anti-Heat Overlay — INAIL / Worklimate / Italian regional ordinances
- Kenya OSH Act General Duty — Kenya Law / Directorate of Occupational Safety and Health Services context
- Latvia Cabinet Regulation No. 359 — Workplace Microclimate Limits — Cabinet of Ministers, Republic of Latvia (enforced by State Labour Inspectorate, VDI)
- Lithuania HN 69:2003 Indoor Temperature Ceilings + VDI Outdoor Heat-Break Guidance — Lietuvos Respublikos sveikatos apsaugos ministerija (Ministry of Health, HN 69:2003) / Valstybine darbo inspekcija (VDI -- State Labour Inspectorate, outdoor break guidance)
- Luxembourg ITM-ET 32.10 — 26 °C Workplace Temperature Ceiling — Inspection du travail et des mines (ITM), Luxembourg
- Morocco Arrêté n° 93-08 — Workplace Temperature Provisions (no heat threshold) — Ministère de l'Emploi et de la Formation Professionnelle, Morocco
- MSHA Mining Heat Stress Overlay — Mine Safety and Health Administration
- Netherlands Arbobesluit Art. 6.1 — Workplace Temperature Duty — Ministerie van Sociale Zaken en Werkgelegenheid / Nederlandse Arbeidsinspectie, Netherlands
- Nevada OSHA Heat Illness Prevention Regulation (R131-24) — Nevada OSHA / Nevada Division of Industrial Relations
- Norway Arbeidstilsynet Workplace Temperature Guidance — Arbeidstilsynet (Norwegian Labour Inspection Authority)
- NYC Executive Order No. 17 — Outdoor Worker Heat Protection — Office of the Mayor of New York City
- Oil & Gas Heat Governance Overlay — IOGP / IPIECA-style governance
- OSHA Federal Heat Rule NPRM (Proposed) — US OSHA
- Philippines DOLE Labor Advisory No. 08-23 — Philippines DOLE
- Phoenix Contractor Outdoor Heat Safety Ordinance — City of Phoenix
- Poland Maximum Workplace Temperature Rule (§30a, Dz.U. 2026 poz. 927) — Ministerstwo Rodziny, Pracy i Polityki Społecznej (Ministry of Family, Labour and Social Policy), Poland
- Poland Preventive Meals & Drinks Regulation (Dz.U. 1996 Nr 60 poz. 279) — Rada Ministrów (Council of Ministers), Poland
- Portugal Decreto-Lei n.º 243/86 — Temperature & Humidity Comfort Rule — Ministério do Trabalho e Segurança Social (Ministry of Labour and Social Security), Portugal
- Romania OUG nr. 99/2000 — Extreme Temperature Worker Protection — Government of Romania (Ministry of Labour / Ministry of Health / Labour Inspectorate)
- Russia Rospotrebnadzor Heat-Work Recommendations — Rospotrebnadzor (Federal Service for Surveillance on Consumer Rights Protection and Human Well-Being); SanPiN 1.2.3685-21 context: Chief State Sanitary Doctor of the Russian Federation
- Safe Work Australia Heat Guide — Safe Work Australia
- San Antonio Contractor Outdoor Heat Ordinance — City of San Antonio
- South Africa Physical Agents Regulations 2024 — Department of Employment and Labour (South Africa)
- Spain Outdoor Heat Amendment (RD 486/1997) — Government of Spain / BOE
- Switzerland SUVA/SECO Heat at Work — Four Heat Levels (Arbeiten im Freien bei Sonne und Hitze) — SUVA (Swiss National Accident Insurance Fund) with SECO (State Secretariat for Economic Affairs)
- Taiwan Article 303-1 Heat-Index Control Overlay — Taiwan Ministry of Labor / National Laws and Regulations Database
- Tanzania Occupational Health and Safety Act 2003 — General Duty (no heat threshold) — Occupational Safety and Health Authority (OSHA Tanzania), Ministry of Labour, United Republic of Tanzania
- Turkey Law No. 6331 General Duty — Republic of Turkiye official legislation database
- UK HSE Temperature Guidance — UK Health and Safety Executive
- Uruguay MTSS — Guía para trabajos con exposición a altas temperaturas (2025) — Ministerio de Trabajo y Seguridad Social (MTSS), Uruguay
Screening thresholds (11)
Stop-work / banned hours (12)
Wildfire smoke thresholds (4)