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RT-130, Wildland Fire Safety Training Annual Refresher (WFSTAR)

RT-130 Decorative banner. Group of photos depicting wildland firefighters performing various duties.

Chainsaw Operational Complexity and Tree Size-Up - When Complexity Changes

Identify common themes from the Wildland Fire Lessons Learned Center “2004-2019 Tree Felling Accident Analysis” to promote discussion between new and experienced sawyers about ongoing procedural size-up and complexity analysis, human factors affecting the cutting process, and complexity changing throughout a chainsaw operation.
Category: Hazards
Core Component(s):
Local Topics, Incident Reviews and Lessons Learned, Fire and Aviation Operational Safety, Human Factors, Communication and Decision Making
Estimated Delivery Time: 45 minutes
Video Length: 20:26

Intent

Identify common themes from the Wildland Fire Lessons Learned Center 2004-2019 Tree Felling Accident Analysis to promote discussion between new and experienced sawyers about ongoing procedural size-up and complexity analysis, human factors affecting the cutting process, and complexity changing throughout a chainsaw operation.

Facilitator Preparation

  • Review the video, module tools, and additional resources linked below.
  • Consider additional discussion questions pertinent to your location and agency.
  • Guide discussion based on the topics and guidance provided below from the NWCG Hazard Tree and Tree Felling Subcommittee.

Facilitating the Discussion

  • Show the video.
  • Pause video as questions appear on screen to facilitate discussion.
  • Optional: Conduct additional activities pertinent to your location and agency.

Discussion Questions

  1. What size-up process(es) have you used or seen?
  2. What factors affect which is the good side vs. bad side of the tree?
  3. What does cutting area control mean to you?
  4. What other human factors might influence the size-up process, complexity analysis, or overall cutting operation?
  5. What experiences have caused you to reevaluate your felling operation? How do you maintain your cutting area control?

Resources

Video Information

  • This video is also available as a download (zip file, size 1.2 GB) with .srt file for closed captioning (you may need to right click and Save As). For information on how to add closed captioning to a video, see this how-to page.
  • Note: For Chrome, Firefox, and Edge, right click the word download and select Save Link As; for Internet Explorer (IE), right click and select Save Target As.

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NWCG Latest Announcements

Equipment Bulletin 25-002: Chaps, Chain Saw, M-2020, Nonconformities Affecting Use, Appearance, and Serviceability

Date: June 2, 2025
Questions?  Please contact:
Equipment Technology Committee

The Equipment Technology Committee issued Equipment Bulletin: 25-002 to address a manufacturing nonconformity affecting Forest Service specification, 6170-4K Chain Saw Chaps. The issue applies to chaps manufactured in 2024 and 2025 and distributed through FedMall. These chaps may have incorrectly bound edges that expose inner protective layers.

Independent purchasers should inspect all chain saw chaps received from FedMall beginning in 2024, prior to use. Review the full Equipment Bulletin: 25-002 for inspection criteria and recommended actions.

References:

NWCG Alerts

ETC Equipment Bulletin: 25-002

2024 Wildland Fire Emergency Medical Service Awards

Date: May 22, 2025
Questions?  Please contact:
Emergency Medical Committee

The NWCG Emergency Medical Committee (EMC) is proud to announce the recipients of the 2024 Wildland Fire Emergency Medical Service Awards. Each year, EMC recognizes individuals and groups who have demonstrated exceptional actions or accomplishments that go above and beyond their normal mission or job duties.

Congratulations to all the awardees and nominees. Through leadership and initiative, they have made significant contributions to the safety and well-being of the wildland fire community. These honors are well deserved.

References:

2024 Wildland Fire EMS Awards

NWCG Emergency Medical Committee

NWCG Welcomes the Incident Management Teams Association as an Associate Member

Date: May 21, 2025
Questions?  Please contact:
https://www.nwcg.gov/contact-us

The NWCG Executive Board is honored to announce that the Incident Management Teams Association (IMTA) has joined the National Wildfire Coordinating Group as an associate member.

IMTA is a dedicated group of incident management professionals committed to enhancing the profession by promoting standards and fostering collaboration across federal, state, local, Tribal, and private sector partners throughout all phases of incident management.

“Joining NWCG aligns with our mission to elevate incident management professionals nationwide,” said Dr. Randal Collins, President of IMTA. “This is a proud moment for all of us committed to advancing public safety.”

References:

Incident Management Teams Association

National Wildfire Coordinating Group

Updated NWCG Guide for Wildland Fire Modules, PMS 431

Date: May 14, 2025
Questions?  Please contact:
Fire Use Subcommittee

The updated NWCG Guide for Wildland Fire Modules, PMS 431 serves as a supplemental resource for wildland fire module operations, providing information frequently used in the field.

PMS 431 defines the organizational structure, staffing, and qualifications for Type 1 and Type 2 Wildland Fire Modules, outlining their roles in wildland fire suppression, prescribed fire, and resource management. The NWCG Guide for Wildland Fire Modules, PMS 431, should be used in conjunction with the NWCG Standards for Wildland Fire Module Operations, PMS 430.

References:

NWCG Guide for Wildland Fire Modules, PMS 431

NWCG Standards for Wildland Fire Module Operations, PMS 430