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AECOM • Provide assistance to prevent body heat loss, such as: o Providing appropriate sources of heat(e.g.warm packs, portable heaters, etc.). o Use of insulating materials on equipment handles when temperatures drop below 30°F (-1°C). 4.2.4 All staff working in extreme cold or snow conditions should understand the following guidelines for preventing and detecting hypothermia and frostbite; refer to S3AM-112-ATT2 Symptoms& Treatment: • Ensure appropriate PPE requirements are established and adhered to. • Avoid exhaustion or fatigue because energy is needed to keep muscles warm. • Because prolonged exposure to cold air or to immersion in cold water at temperatures even well above freezing can lead to dangerous hypothermia,whole-body protection shall be used. • Eat high calorie snacks to help maintain body metabolism. • Confirm extra blankets or sleeping bags are on-site. • Drink plenty of warm liquids. It is easy to become dehydrated in cold weather. • Avoid caffeine and alcohol,which can act as diuretics.Alcohol consumption, depending upon quantity, can dilate blood vessels enhancing body heat loss or constrict blood vessels decreasing heat delivery to extremities. • NEVER IGNORE SHIVERING. Persistent or violent shivering is a clear warning that you are on the verge of hypothermia. • If you experience frost bite or hypothermia,find shelter and warmth and contact a medical practitioner if symptoms persist, refer to S3AM-128-PRI Medical Screening&Surveillance. 4.3 Training Before they begin work in a cold environment, employees that might be exposed to cold stress will be informed of the potential for cold stress and how to prevent cold stress. Employees that have not had the training within the twelve prior months shall repeat the training before exposure to cold stress, refer to S3AM-003-PRI SH&E Training. Employees potentially exposed to cold stress will receive training including, but not limited to: 4.3.1 Sources of cold stress,the influence of protective clothing, and the importance of acclimatization. 4.3.2 How the body loses heat. 4.3.3 Recognition of cold-related illness symptoms. 4.3.4 Cold stress preventative/corrective measures including, but not limited to: • Weather monitoring. • Proper eating and drinking practices. • Work-warming schedules and proper re-warming techniques. • Buddy system. • Safe cold work practices appropriate to the work that is to be performed. • Proper use of cold environment personal protective clothing. 4.3.5 The harmful effects of excessive alcohol consumption in a cold stress environment. 4.3.6 The hazards associated with unstable snow or ice build ups. 4.3.7 First aid procedures for symptoms related to cold stress. Cold Stress (S3AM-112-PR1) Revision 2 July 31,2019 PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. 4 of 9