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SEL Number: 01SW-04-UNDR
Title: Undergarment, Surface Water Operations


Last Updated: 7/8/2022 12:55:44 PM

Previous SEL Number: 01SW-04-UNDR

Description: Insulation garment worn under surface water operations dry suit or ice suit.
(Replaces Item 01WA-04-UNDR)

ImportantFeatures: Undergarments are worn with an ensemble (dry suit or ice suit) that includes garment, booties, helmets, personal flotation device, and optional swimming fins. Undergarment should be made of a material that wicks moisture away from the skin and minimizes chafing. The undergarment should either assist in cooling or provide insulation, depending upon the environment.

Operating Considerations: Surface water operations are defined as "Technical rescue activities requiring water functional capabilities involving surface water, swift water, tidal water, surf, and ice that do not require underwater respiratory equipment."

The principal danger during swift water rescues is drowning. This means that all persons involved in swift water rescue operations should wear an approved personal floatation device, or a suit (such as an ice suit) designed to provide adequate flotation. Other protective clothing and equipment must mitigate drowning exposure hazards. For example, garments should not have loose straps or openings that can create entanglement hazards with floating debris. Regular helmets cannot be worn since they can fill with water and restrict movement. In addition, flood water temperatures can be quite low (near freezing). Exposure to cold water for extended periods of time results in reduced hand and foot function as the body's circulatory system limits blood flow to the extremities. Overexposure to these conditions can result in hypothermia. Lastly, flood water can carry chemical and sewage contamination capable of causing acute or chronic health effects.

Training Requirements: Core Training: NFPA
National Fire Protection Association
2500, NFPA
National Fire Protection Association
1006.
Initial Training: Extensive (>2 days)
Sustainment Training: Extensive (>2 days)

Mandatory Standards:

Applicable Standards and References:


MSSL:
  • Dive Team
  • Maritime
  • Preventive Rad/Nuc Detection