S-190, Introduction to Wildland Fire Behavior (Spanish)

Course Title

Introduction to Wildland Fire Behavior (Spanish)

Version Date

2020

Previous Certification Dates

2016-10
1994-05
1983-01
1976-02

Course Number

S-190

Course Description

This is the first and foundational wildland fire behavior course in a five-course sequence in the NWCG curriculum. It introduces students to the basic concepts of wildland fire behavior, including:

The primary wildland fire environment components: fuels, weather, and topography
How characteristics and interactions of fuels, weather, and topography affect fire behavior
How fire behavior affects risk to firefighters.

Course Objective

Describe the basic terminology used in wildland fire.

Lead Instructor Minimum Qualifications

Lead instructor must be a qualified Single Resource Boss (CRWB, HEQB, ENGB, FELB, FIRB, and HMGB).

Format

Spanish

Special Delivery Considerations

S-190 may be delivered as instructor-led (classroom) or self-directed (online) training.

NWCG training materials are being updated to reduce redundancy and conflict among overlapping documents. Course-specific student workbooks will be replaced by standards-bearing NWCG publications - the documents that actually guide operations. Instructor guidance will be integrated into PowerPoint presentations rather than located in separate documents. Instructors may use the instructor guide file (exported from the PowerPoint presenter notes), view the notes in presentation mode, or export the notes into the desired format.

Business Steward

PMC Fire Planning Management Committee

Unit Instructor Minimum Qualifications

Unit instructors must be qualified as Firefighter Type 1 (FFT1).

Alternate Delivery Mode

Instructor Led

Class Size Recommendations

Recommended class size is 24 students. Instructors should maintain a 6:1 ratio of students to instructors/coaches to facilitate exercises and discussion and to enable strong mentorship to the students

Class Size Recommendations

Special Cadre Considerations

Conduct initial, pre-course, daily, and close-out instructor cadre meetings. These provide opportunities to plan, organize, preview materials, review training and exercises, and identify and address concerns and issues. Consider using an informal After Action Review process. Instructor cadre meetings are critical for instructors who do not have previous experience with the course. Additional information is located in the NWCG Standards for Course Delivery, PMS 901-1.

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.