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S-339, Division/Group Supervisor (ILT)

Course Description

This course prepares students to perform in the role of Division/Group Supervisor (DIVS). It provides instruction in support of the specific tasks of the Division/Group Supervisor, but will not instruct students in general management/supervision or in the Incident Command System (ICS), both of which the student should learn through prerequisite work. Topics include division or group management, organizational interaction, division operations, all-hazard operations, and tactical decision games (optional). The pre-course work consists of a professional reading assignment that can take from four to eight hours to complete. There is a final examination in this course.

Course Objectives

At the successful completion of this course, the student will demonstrate an understanding of the duties required of a Division/Group Supervisor in preparation for completing position task book elements.

Prerequisite Qualifications

Qualified as Task Force Leader (TFLD), OR Qualified as Incident Commander Type 3 (ICT3),
OR
Qualified as Incident Commander Type 4 (ICT4) and any two Strike Team Leader positions (one must be STCR or STEN).

Alternate Delivery Mode

Alternate Delivery Mode
Not Applicable
Training Required For
DIVS 310-1 Training Path 01
Lead Instructor Minimum Qualifications
The lead instructor must be a qualified Operations Section Chief Type 2 (OSC2).
Unit Instructor Minimum Qualifications
Unit instructors must be qualified as Division/Group Supervisor (DIVS) or Incident Commander Type 3 (ICT3).
Business Steward
IOSC Incident Operations Subcommittee
Course Level
Area, State, Regional
Format
Instructor Led
Course Number
S-339
Course Title
Division/Group Supervisor (ILT)
Pre-course Work (PCW) Hours
4-8

Special Delivery Considerations

These materials are needed above and beyond the usual items (pens, paper, flip charts, markers, etc.).
Sample Agenda
Map 1 and Map 2 for TDGS exercises will need to be printed on a plotter at a minimum size of 24" x 36".
Sand tables for TDGS exercises.

Course Updates
2015 Version
Optional materials have been developed to enhance the students understanding of the Wildland Fire Decision Support System (WFDSS) relative to the Division Group Supervisor position. Instructors who choose to use the optional materials to enhance the course should be familiar with the lesson and its contents and determine how it will be used in the course.

The materials are available here: http://wfdss.usgs.gov/wfdss/WFDSS_NWCG_WFDSS.shtml.

Development History

Replaced I-339 in 3/97.

Version Date

2015

Previous Certification Dates

2006-09
1997-03

NWCG Latest Announcements

New Aircraft Flight Schedule Form, PMS 249

Date:  April 17, 2026
Questions? 
Please contact: National Coordination System Committee

A new publication from the National Coordination System Committee (NCSC) is now available. The NWCG Aircraft Flight Schedule Form, PMS 249, will be used for aviation crews and dispatch to share flight information that is needed for resource tracking, and if needed, for emergency procedures.

For further details, please contact your NCSC representative. 

References:

NCSC Memo 26-01: Implementation of NWCG Aircraft Flight Schedule Form, PMS 249

NWCG Aircraft Flight Schedule Form, PMS 249

New Glossary Term for Review

Date:  April 15, 2026
Questions? 
Please contact: Data Standards and Terminology Board (DSTB)

The Data Standards and Terminology Board is requesting feedback on a new glossary term: Resource Protection Measure (RPM).

The proposed definition is: Practical guidance provided for incident personnel in a manner in which incident objectives can be achieved while reducing impacts to identified resources across the landscape. RPMs are informed by, but not restricted to, Minimum Impact Strategies and Tactics (MIST).

Please review, share with your subgroups, and provide feedback as appropriate through the following form: Request Feedback The comment period will close May 10, 2026.

Thank you for your engagement in the NWCG glossary process – your participation is key to our success.

References:

Glossary Request Feedback

Quarter Three Materials for the 2025-2026 Wildland Fire Leadership Campaign Now Available

Date:  April 1, 2026
Questions? 
Please contact: Leadership Committee

NWCG is excited to announce that Quarter Three materials for the 2025/2026 Wildland Fire Leadership Campaign are now available. This annual initiative offers all students of leadership and wildland fire management an opportunity to engage with essential leadership skills and knowledge needed to lead effectively in dynamic environments.

Quarter Three materials focus on Leadership Level 3: Leader of People (Develop Intent). Leadership Level 3 is where your values, your team, and your influence come together. Leaders of People put their teams first, build trust, and lead with authenticity. They mentor future leaders and shape decisions up and down the chain.

References:

2025/2026 NWCG Leadership Campaign - Leadership Levels

Wildland Fire Leadership Development Program

Leadership Committee

WFSTAR 2026 Core Components Module Package and 2025 Fire Year in Review Now Available

Date:  March 23, 2026
Questions? 
Please contact: Joe Schindel

The 2026 Core Components Module Package for RT-130, Wildland Fire Safety Training Annual Refresher (WFSTAR) and the 2025 Fire Year in Review are now available on the NWCG website. The 2026 Core Components Module Package provides all content needed to deliver RT-130.

References:

2026 Core Components Module Package

2025 Fire Year in Review Module