extremely hot weather

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# OCCUPATIONAL HEALTH AND SAFETY REGULATION (cont.) ## Heat stress controls (cont.) WORKERS COMPENSATION ACT B.C. Reg. 296/97 # OCCUPATIONAL HEALTH AND SAFETY REGULATION Part 7 - Noise, Vibration, Radiation and Temperature (b) personal protective equipment, if the equipment provides protection equally effective as administrative controls. [en. B.C. Reg. 382/2004.] ## Provision of water 7.31 If a worker is or may be exposed to the conditions specified in section 7.27, the employer must provide and maintain an adequate supply of cool potable water close to the work area for the use of a heat exposed worker. [en. B.C. Reg. 382/2004.] ## Removal from and treatment for heat exposure 7.32 If a worker shows signs or reports symptoms of heat stress or strain, the worker must be removed from the hot environment and treated by an appropriate first aid attendant, if available, or by a physician. [en. B.C. Reg. 382/2004.] ## Cold Exposure ## Application - 7.33 Sections 7.34 to 7.38 apply to a workplace if a worker is or may be exposed to (a) thermal conditions that could cause cold stress or injury, (b) thermal conditions that could cause a worker's core body temperature to fall below 36°C (96.8°F), or (c) thermal conditions that are below the levels classified as "little danger" to workers in the criteria for the cooling power of wind on exposed flesh in the cold stress section of the ACGIH Standard. [en. B.C. Reg. 382/2004.] ## Cold stress assessment and exposure control plan - 7.34 If a worker is or may be exposed to the conditions specified in section 7.33, the employer must (a) conduct a cold stress assessment to determine the potential for hazardous exposure of workers, using measures and methods that are acceptable to the Board, and (b) develop and implement a cold exposure control plan meeting the require- ments of section 5.54 (2). [en. B.C. Reg. 382/2004.] ## Cold stress controls 7.35 (1) If a worker is or may be exposed to the conditions sp…

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# General Environmental Controls J Oregon Occupational Safety and Health Division Oregon Administrative Rules AO 1-2025 Division 2 (c) The shade must be located as close as practical to the areas where employees are working. (d) Shade present during meal periods must be large enough to accommodate the number of employees on the meal period that remain onsite. (e) If trees or other vegetation are used to provide shade, such as in orchards or forests, the thickness and shape of the shaded area must provide sufficient shadow to protect employees. - Exception: When the employer can demonstrate that providing access to shade is not safe or it interferes with the ability of employers and employees to complete the necessary work in a particular situation, for example, during high winds or when an employee is walking through range land, employers must identify and implement alternative cooling measures that provide equivalent protection such as providing cooling vests (either with fans or ice packs), water-dampened cotton clothing, or similar effective measures. The Heat Illness Prevention Plan under section (8) must include the use, care, and maintenance of the alternative cooling methods, in writing. (4) Drinking water. Ensure that a sufficient supply of drinking water is immediately and readily available to exposed employees at all times, at no cost, when the heat index in the work area equals or exceeds 80 degrees Fahrenheit. (a) Supplied drinking water must be either cool or cold, see subsection (2)(b). (b) Supply each employee with enough drinking water to enable them to consume up to 32 ounces per hour. Employers are not required to supply the entire quantity of drinking water needed for all employees on a full shift at the beginning of the shift. Employers may begin the shift with smaller quantities of drinking water when effective procedures are established to replenish the water consumed during the shift. (c) Employees must have ample opportun…

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# General Environmental Controls (cont.) J General Environmental Controls Division 2 AO 1-2025 Oregon Administrative Rules Oregon Occupational Safety and Health Division ## 4. Acclimatization. Table 4.1 Acclimatization in workers <table><tr><th>Topics</th><th>Additional information</th></tr><tr><td>Disadvantages of being unacclimatized</td><td>Readily show signs of heat stress when exposed to hot environments. Difficulty replacing all of the water lost in sweat. Failure to replace the water lost will slow or prevent acclimatization.</td></tr><tr><td>Benefits of acclimatization</td><td>Increased sweating efficiency (earlier onset of sweating, greater sweat production, and reduced electrolyte loss in sweat). Stabilization of the circulation. Work is performed with lower core temperature and heart rate. Increased skin blood flow at a given core temperature.</td></tr><tr><td>Acclimatization plan</td><td>Gradually increase exposure time in hot environmental conditions over a period of 7 to 14 days. For new workers, the schedule should be no more than 20% of the usual duration of work in the hot environment on day 1 and a no more than 20% increase on each additional day. For workers who have had previous experience with the job, the acclimatization regimen should be no more than 50% of the usual duration of work in the hot environment on day 1, 60% on day 2, 80% on day 3, and 100% on day 4. The time required for non-physically fit individuals to develop acclimatization is about 50% greater than for the physically fit.</td></tr><tr><td>Level of acclimatization</td><td>Relative to the initial level of physical fitness and the total heat stress experienced by the individual.</td></tr><tr><td>Maintaining acclimatization</td><td>Can be maintained for a few days of non-heat exposure. Absence from work in the heat for a week or more results in a significant loss in the beneficial adaptations leading to an increased likelihood of acute dehydration, illness, or fatigue. C…

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# Occupational Health Service (cont.) ## Ventilation (cont.) O-0.2 Occupational Health and Safety Act 91-191 ## Temperature ## Temperature - 21(1) Subject to subsection (2), an employer shall en- sure that the temperature of a work area in an enclosed place of employment is maintained as follows: (a) where light work is performed while sitting, such as any mental work, precision work, reading or writing, the minimum temperature required is 20 °C; (b) where light physical work is performed while sitting, such as electric machine sewing or work with small machine tools, the minimum temperature re- quired is 18 °C; (c) where light or moderate physical work is per- formed while standing, such as machine tool work, assembly work or trimming, the minimum tempera- ture required is 16 °C; and (d) where heavy physical work is performed while standing, such as drilling or manual work with heavy tools, the minimum temperature required is 12 °C. - 21(2) If is not practical to heat a work area to the tem- perature required by subsection (1), an employer shall provide a suitable place where the employee may go to get warmed - 2022-27 ## Extremes of Temperature ## Extremes of temperature - 22 Where an employee is exposed to work conditions that may present a hazard because of extreme heat or ex- treme cold, an employer shall ensure that (a) a competent person measures and records the thermal conditions at frequent intervals and makes the findings available to a committee, if any, and to an of- ficer on request, and (b) the occupational exposure limits for protection against heat stress and cold stress are followed as well as the work-rest regimen for heat, the work-warming regimen for cold and other advice found in the AC- GIH publication entitled "2016 Threshold Limit Val- ues for Chemical Substances and Physical Agents and Biological Exposure Indices". 2001-33; 2022-27 ## Température ## Température - 21(1) Sous réserve du paragraphe (2), l'employeur d…