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Dirty Nomex®

 

Nomex® is the brand name for a heat and flame-resistant textile made by the DuPont chemical company and first marketed in 1967. Today, more than three million firefighters and aviation personnel around the world are protected by structure fire turnout gear, wildland fire personal protective equipment (PPE), and flight suits and jackets made of Nomex®.

Nomex® is not flame-proof. It burns when you hold a flame to it, but stops burning once the heat source is removed. The thick woven structure of synthetic fibers is a very poor conductor of heat. When exposed to heat, the fibers expand, closing the spaces between them insulating the wearer. But to work correctly, Nomex® needs proper care.

Dirty Nomex®

  • Wash Nomex® like normal laundry, but always include a rinse cycle that adequately removes soaps and detergents.
  • Nomex® garments should never be subjected to strong oxidizing agents such as peroxides or bleaches. These products harm the physical strength of the fabric.
  • Tumble dry and remove while slightly damp. Over-drying damages the fabric.

Poison Oak/Ivy/Sumac on Nomex®

National Technology and Development Program (NTDP) conducted research on laundering Nomex® firefighting clothing that has been contaminated with urushiol oil (what causes the rash) from poison oak/ivy/sumac exposure.

  • NTDP recommends that fire clothing contaminated with urushiol oil be cleaned following normal Nomex® laundering procedures, with a degreaser such as a detergent or a laundry soap, and as soon as possible.
  • Extra care should be exercised when handling the contaminated clothing, and it should be kept separate from unaffected clothing and equipment.
  • Put the affected clothing in a marked bag if you are giving it to someone else to wash. Before handling the affected clothing, apply a skin-barrier product such as Ivy Block or Technu®.

Fuel-Soaked Nomex®

Flammable contaminants will reduce the thermal performance of any flame-resistant garment including Nomex®.

  • Proper and periodic cleaning is essential to maintain thermal protective performance.

 

Action Item -

Nomex® is not effective if it is excessively dirty, fuel-soaked, or has holes. Does your Nomex® need to be washed, repaired, or replaced?

 

Reference:

A 2008 SAFENET corrective action filed by the US Forest Service regarding poison oak reactions experienced by firefighters during the 2008 fire season in California.

 

Category
Firefighter Health & First Aid
References
Care & Cleaning Information for Nomex® and Nomex® Blend Flame Resistant Garments
Product Care Information on Nomex® Garments

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NWCG Latest Announcements

Incident Position Standards and the Next Generation Position Task Books Now Available for UASD, UASM, UASL and UASP

Date: July 31, 2025
Questions?  Please contact:
Interagency Fire Unmanned Aircraft Systems Subcommittee
 

NWCG is excited to announce that Incident Position Standards and the Next Generation Position Task Books are now available for all four Unmanned Aircraft Systems positions:

  • Unmanned Aircraft Systems, Data Specialist (UASD)
  • Unmanned Aircraft Systems, Manager (UASM)
  • Unmanned Aircraft Systems, Module Leader (UASL)
  • Unmanned Aircraft Systems Pilot (UASP)

The Performance Support Packages for these positions were developed as part of the Incident Performance and Training Modernization effort. These resources support trainees, qualified personnel, and evaluators in their respective roles.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

NWCG Unmanned Aircraft Systems, Data Specialist Position Page

NWCG Unmanned Aircraft Systems, Manager Position Page

NWCG Unmanned Aircraft Systems, Module Leader Position Page

NWCG Unmanned Aircraft Systems Pilot Position Page

Incident Position Standards and the Next Generation Position Task Books Now Available for RADO and INCM

Date: July 30, 2025
Questions?  Please contact:
Incident Logistics Subcommittee
 

NWCG is excited to announce that Incident Position Standards and the Next Generation Position Task Books are now available for Radio Operator (RADO) and Incident Communications Center Manager (INCM).

The Performance Support Packages for these positions were developed as part of the Incident Performance and Training Modernization effort. These resources support trainees, qualified personnel, and evaluators in their respective roles.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

NWCG Radio Operator Position Page

NWCG Incident Communications Center Manager Position Page

ETC Equipment Bulletin: 25-004 NEW Aquatic Invasive Species – Golden Mussels

Date: July 29, 2025
Questions?  Please contact:
Equipment Technology Committee
 

The Equipment Technology Committee (ETC) issued Equipment Bulletin: 25-004, notifying the wildland fire community about a newly discovered invasive species and actions to take if found. Golden mussels, a highly invasive species recently identified in California, pose a significant risk to native ecosystems, infrastructure, and fire equipment. These mussels rapidly colonize hard and soft surfaces, including aquatic plants and fire equipment, clogging pipes, fouling motors, disrupting water systems, and impacting native species.

To help prevent their spread, fire personnel must follow the decontamination procedures outlined in the NWCG Guide to Preventing Aquatic Invasive Species Transport by Wildland Fire Operations, PMS 444. Additionally, report any sightings immediately to your Lead Resource Advisor and include clear, close-up photos and location details.

Read the complete ETC Equipment Bulletin: 25-004 to learn more. 

References:

NWCG Alerts

ETC Equipment Bulletin: 25-004

NWCG Guide to Preventing Aquatic Invasive Species Transport by Wildland Fire Operations, PMS 444

Incident Position Standards and the Next Generation Position Task Books Now Available for ICT5 and FFT1

Date: July 29, 2025
Questions?  Please contact:
Incident Command Subcommittee
Incident Operations Subcommittee

NWCG is excited to announce that Incident Position Standards and the Next Generation Position Task Books are now available for Incident Commander Type 5 (ICT5) and Firefighter Type 1 Squad Boss (FFT1).

The Performance Support Packages for these positions were developed as part of the Incident Performance and Training Modernization effort. These resources support trainees, qualified personnel, and evaluators in their respective roles.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

NWCG Incident Commander Type 5 Position Page

NWCG Firefighter Type 1 Squad Boss Position Page