S-231, Engine Boss (Single Resource), 2012

Decorative banner: Four photos of wildland firefighting operations. Three firefighters pull hose to the flatbed of another truck. A firefighter pulls hose from the back of an engine as he walks away. A fire engine drives up a dirt road with a firefighter walking beside and flames in background burn sage. A fire engine drives down a dusty road next to heavy timber.

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Instructor-led Description

This is a skill course designed to produce student proficiency in the performance of the duties associated with Engine Boss, Single Resource (ENGB). Topics include engine and crew capabilities and limitations, information sources, fire size up considerations, tactics, and wildland/urban interface.

Blended Description

This course was developed using a blended approach to learning. Students are required to complete the online training portion of the course and pass an online assessment prior to taking the ILT. The focus of this online training is to teach knowledge and concepts. The ILT will reinforce the content learned online and provide opportunities to apply this knowledge to real-world scenarios and practical exercises. Upon completion of the ILT, students must then take and pass a final assessment in order to receive credit for the course. The final assessment covers content from both the online and ILT portions of the course.


  • Perform the tasks of an Engine Boss in making the tactical decisions required to safely manage an engine on an incident.

Target Group

Personnel desiring to be qualified as Engine Boss, single resource (ENGB).


S-231 is available as either blended training or classroom instructor-led training.

Instructor-led Course Components and Hours to Complete

Course ComponentCourse Time
Pre-course workN/A
Pre-selection assessmentN/A
Online trainingN/A
Instructor-led training12-16
Total Hours12-16


Blended Components and Hours to Complete

Course ComponentCourse Time
Pre-course workN/A
Pre-selection assessmentN/A
Online training6
Instructor-led training6-10
Total Hours12-16

Session Offerings

Nationally advertised course sessions can be found by searching for S-231 on the National Wildland Fire Training website. Contact your local Training Officer for more information about local course sessions.

Prerequisite Qualifications and Training

  • Qualified as a Firefighter Type 1 (FFT1).
  • Successful completion of S-230, Crew Boss (Single Resource) (CRWB) (instructor led or blended delivery).

Course Level



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