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Proper Use of Trigger Points

 

The 10 Standard Firefighting Orders and the 18 Watch Out Situations, as referenced in the NWCG Incident Response Pocket Guide (IRPG), PMS 461, provide wildland firefighters with a set of consistent best practices and a series of scenarios to be mindful of when responding to a wildland fire.

A poster with individual line art drawings of the 10 Standard Firefighting Orders and 18 Watch Out Situations used to educate wildland firefighters of the dangers and situations to be aware of.

View the 10 and 18 Poster, PMS 110-18.

Accurate situation awareness (SA) requires a constant reassessment of conditions (existing and potential) that may impact the safety and effectiveness of tactics. Monitor for the 18 Watch Out Situations and establish trigger points (in the form of operational or environmental limits) ahead of time.

Remember, trigger points are not decision-makers but serve as predetermined cues to prompt you to re-evaluate the current and potential situation and its associated risks. They help you to determine and implement the proper course of action.

The following items are considerations in your planning and discussion.

  • Use trigger points for preplanning. Do not wait until you are in the wrong place at the wrong time – with no time.
  • Trigger points should be based on measurable factors such as: ​
    • Relative Humidity (RH).
    • Winds.
    • Fire behavior.
    • Topographical boundaries.
    • Time constraints/time of day.
    • Time/distance to safety zones.
    • Loss of suppression resources.
    • Other operational considerations (e.g., firefighter fatigue, loss of lookouts or communication, weather change).
  • As you approach predetermined trigger points, go through the Risk Management Process to help you decide if a change in tactics is required:
    • Identify hazards.
    • Assess hazards.
    • Develop controls and make risk decisions.
    • Implement controls.
    • Supervise and evaluate. ​
  • Consider the following command/leadership responsibilities when changing tactics:
    • Communicate the changes to your subordinates, as well as to adjacent forces and up the chain of command.
    • Account for all your people.
    • Make sure everyone knows and follows the new plan. ​

References:

Category
Weather - Fire Behavior

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NWCG Latest Announcements

LMC Equipment Bulletin 26-001: Aquatic Invasive Species – Seasonal Reminder for Mussels

Date:  July 30, 2026
Questions? 
Please contact: Equipment and Technology Subcommittee

The Logistics and Equipment Management Committee (LMC) issued Equipment Bulletin 26-001: Aquatic Invasive Species - Seasonal Reminder for Mussels, reminding the wildland fire community that aquatic mussels continue to be a problem. 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 (with a pen or your hand for size reference) and location details.”

Read the complete LMC Equipment Bulletin 26-001, to learn more. 

References:

NWCG Alerts

LMC Equipment Bulletin 26-001: Aquatic Invasive Species - Seasonal Reminder for Mussels

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

Intermediate Faller (FAL2) Position Task Book Update

Date:  July 24, 2026
Questions? 
Please contact: Tree Felling Subcommittee

NWCG Operations Management Committee (OMC) has issued an update to the NWCG Position Task Book for Intermediate Faller (FAL2), PMS 311-91. To ensure clarity for both trainees and evaluators, the updated FAL2 Position Task Book (PTB) explicitly states who is authorized to sign off on your tasks:

“Evaluators must be qualified as a FAL2, or an Advanced Faller (FAL1).”

If you are currently working out of a previously published version of the FAL2 PTB, you do not need to restart. However, OMC highly encourages you to take the following step to prevent any confusion in the field:

  • Print and replace the updated evaluator information page (page 2) in your current physical PTB.

References:

Intermediate Faller (FAL2) Position Page

RMC Memo 26-01: Transition Plan for Implementing Updates to Intermediate Faller (FAL2) Position Qualifications

NWCG Position Task Book for Intermediate Faller (FAL2), PMS 311-91

Equipment Advisory 26-001: Potential Front Driveline Joint Failure on 2018 and Earlier Ram Pickups

Date:  July 10, 2026
Questions? 
Please contact: Equipment and Technology Subcommittee

The Logistics/Equipment Management Committee (LMC) has released Equipment Advisory 26-001: Potential Front Driveline Joint Failure on 2018 and Earlier Ram Pickups. This advisory highlights multiple U.S. Forest Service regions reporting front driveline joint failure incidents.

This advisory recommends firefighters and fire managers to: 

  • Follow all Ram-issued inspection, maintenance, and service guidance for front driveline joints. 
  • Consider installing a driveline loop. 
  • Coordinate with fleet managers and service providers to determine the most appropriate driveline loop kit for each pickup.

For further details, please refer to the complete advisory.

References:

Equipment Advisory 26-001: Potential Front Driveline Joint Failure on 2018 and Earlier Ram Pickups

Technical Service Bulletin: 03-002-21

NEW! NWCG Standard Operating Procedures, PMS 900

Date:  July 9, 2026
Questions? 
Please contact: NWCG Staff

NWCG is excited to announce the publication of the NWCG Standard Operating Procedures, PMS 900.

The new publication establishes general, consistent, and uniform standards for conducting business with the National Wildfire Coordinating Group.

References:

NWCG Standard Operating Procedures, PMS 900