Note: When another applicable standard addresses other hazards that may be present, employers must comply with the requirements of that standard and this standard. Where the requirements of one standard are more protective than another for the same hazard, employers must follow the requirements that provide the higher level of employee protection.
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.
Note: Drinking water packaged as a consumer product and electrolyte-replenishing beverages that do not contain caffeine (for example, sports drinks) are acceptable substitutes, but should not completely replace required water supplies.
Note: The purpose of the heat illness prevention rest breaks is to allow the body to cool down and recover from working when the heat index equals or is greater than 90 degrees Fahrenheit.
Note: Option (A) allows an employer to implement a self-designed schedule by building on a minimum rest break schedule using four specified elements. Option (B) allows an employer to implement a schedule by using an example heat illness prevention plan designed by NIOSH. Option (C) allows an employer to implement a schedule by using a simplified schedule designed by Oregon OSHA and based on a high-heat scenario in the NIOSH plan.
Note: Employers should consider the effect of exposure to direct sunlight when developing employer-specific heat illness prevention rest break schedule.
[Table 1. Minimum employer-designed heat illness prevention rest break schedule, upon which subsections (i) through iv) must be applied:]
Note: The NIOSH work/rest schedule uses unadjusted ambient temperatures (in degrees Fahrenheit), and employers must follow the instructions underneath Table 3.1 in Appendix A: Mandatory Information for Heat Illness Prevention. Employers must be aware that different work/rest schedules exist for those wearing chemical-resistant suits; see Table 3.2 in Appendix A: Mandatory Information for Heat Illness Prevention.
Note: The Table 2 heat illness prevention rest break schedule is only required during the specified heat index.
Note: Based upon the variable weather patterns across the state, Oregon OSHA recognizes that there is no "one-size-fits-all" acclimatization plan. Employers should be aware that acclimatization to heat takes longer for unfit individuals compared to fit individuals.
Note: Employers should consider the effect of exposure to direct sunlight when developing their acclimatization plan.
Or. Admin. R. 437-002-0156
Statutory/Other Authority: ORS, ,
Statutes/Other Implemented: ORSthrough