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Mixmaster

MXMS Incident Position Description

The Mix Master provides oversight and support of the Wildland Fire Chemicals (WFC) mixing and loading operations. The MXMS reports to the Airtanker Base Manager (ATBM), Single Engine Airtanker Manager (SEMG), or Dip Site Manager. The MXMS works in the Air Operations functional area.

Leadership Level 2, New Leader (Convey Intent)

  • For additional information review Level 2 description, expected behaviors and knowledge, suggested development goals, and self-study opportunities.

Prepare and Mobilize

  • Ensure individual readiness.
  • Gather critical information pertinent to the assignment.
  • Travel to and check in at assignment.
  • Review Base Operations Plan and obtain initial briefing from supervisor.

Build the Team

  • Identify personnel assigned to the mixing crew and maintain accountability. Confirm that the Base Operations Plan or relevant plan has been reviewed with assigned resources.
  • Assemble assigned personnel.
  • Establish and communicate: chain of command; reporting procedures; risk management processes.
  • Establish a common operating picture with supervisors and subordinates.
  • Participate in operational briefings as directed and brief assigned personnel.
  • Obtain and distribute relevant directions, plans, and other information.

Supervise and Direct Work Assignments

  • Establish and communicate objectives, priorities, work assignments, and performance expectations.
  • Identify, analyze, and use relevant situational information to make more informed decisions and take appropriate actions.
  • Adjust actions based on changing information and evolving situation awareness. Develop and implement contingency plans. Communicate changing conditions to assigned resources and supervisor.
  • Ensure daily operational objectives and performance standards are met.
  • Monitor performance and provide immediate and regular feedback to assigned personnel.

Perform Mix Master-Specific Duties

  • Obtain daily or more frequent briefings from supervisor.
  • Provide leadership and direction to the mixing/loading crew during mixing/loading operations.
  • Ensure WFC products are mixed per the Qualified Products List (QPL) and tested prior to being loaded into aircraft.
  • Ensure aircraft are loaded per contract specifications.
  • Work with supervisor to maintain an adequate WFC products inventory based on current and expected activity.
  • Check all equipment such as valves, hoses, pumps, and tanks for operability and ensures agency and OSHA safety measures are in place (e.g., pump shaft guards, fan belt shields, splash guards, wiring integrity, sealed switch boxes, safety signs, and placards, etc.).
  • Request personnel and equipment necessary to perform operations safely and efficiently.
  • Plan the specific layout of the mix plant.
  • Ensure cleanliness of the mix plant.
  • Comply with the Lot Acceptance and Quality Assurance (LAQA) program for all WFC products.
  • Ensure only approved WFC products are utilized and mixed according to the QPL.
  • Utilize refractometer, Marsh Funnel, and mass flow meter to ensure contract compliance.
  • Develop a recirculation schedule.
  • Report and log pounds and gallons and validate as requested.
  • Provide for the safety and welfare of personnel working around the mix plant by using the risk management process.
  • Report all hazards and incidents/accidents immediately to supervisor.
  • Maintain records of all equipment, replacement parts, catalogs, technical manuals, and Safety Data Sheets (SDS).
  • Ensure OSHA regulations for mix plant safety are in place and properly documented in conjunction with supervisor.
  • Ensure compliance with state and federal EPA regulations for storage and handling of WFC products, hazardous waste, and wastewater in conjunction with supervisor.

Communicate and Coordinate

  • Follow established processes and chain of command for collecting, producing, and distributing information.
  • Report any hazardous conditions to supervisor and ensure appropriate action is taken.
  • Participate in After Action Reviews (AAR).

Manage Risk

  • Consider your skill level and limitations and work within them.
  • Apply the Risk Management Process as stated in the NWCG Incident Response Pocket Guide (IRPG), PMS 461.
  • Report all accidents or injuries to supervisor.
  • Ensure compliance with all safety practices and procedures for yourself and those around you.

Document

Demobilize

  • Follow demobilization instructions from supervisor.
  • Ensure incident and agency demobilization procedures and work/rest standards are followed.

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2025-2026 Wildland Fire Leadership Campaign: "Leadership Levels" Now Available

Date: October 15, 2025
Questions? Please contact:
Leadership Committee

NWCG is excited to announce the release of the Leadership Committee’s 2025–2026 Leadership Campaign, themed “Leadership Levels.” 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.

The campaign is structured into four quarters and may be completed at any time between October 1, 2025 -December 31, 2026. Leadership levels will be released quarterly.

Quarter One materials are now available on the Wildland Fire Leadership Development Program website and focus on Leadership Level 1, Follower (Self-Leadership).

References:

2025/2026 NWCG Leadership Campaign - Leadership Levels

Wildland Fire Leadership Development Program

Leadership Committee

Updated! L-280, Followership to Leadership (Instructor-led) Course

Date: October 3, 2024
Questions? Please contact:
Leadership Committee

NWCG is pleased to announce the updated L-280, Followership to Leadership (Instructor-led) course is now available. L-280 is intended for operational personnel at the Firefighter Type 1 level, and for individuals pursuing Leadership Level 2, New Leader. 

This instructor-led course is a primer on leadership and the second formal course in the Wildland Fire Leadership Development Program. It helps emerging leaders build the confidence, skills, and mindset needed to lead effectively in high-risk environments. 

For more information about leadership development and available courses, visit the Leadership Committee Web Portal.

References:

L-280, Followership to Leadership (Instructor-led)

Wildland Fire Leadership Development Program

Wildland Fire Learning Portal

Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use

Date: Sept 26, 2025
Questions? Please contact:
Equipment Technology Committee 

The Equipment Technology Committee (ETC) has released Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use. This advisory recommends all pre-2006 fire shelters should be removed from service by January 1, 2026.

This advisory recommends firefighters and fire managers to:

  • Inspect fire shelters immediately
  • Replace and destroy any pre-2006 shelters (identified by white or pink insert label)
  • Order replacements as needed

For further details, please refer to the complete advisory. 

References:

Equipment Advisory 25-01: Pre-2006 Fire Shelter Degradation and Discontinuation of Use

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NWCG Alerts

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Date: Sept 11, 2025
Questions? Please contact:
Fuels Management Committee 

The S-219, Firing Operations (Blended) course is now available on the Wildland Fire Learning Portal. Developed through the Incident Performance and Training Modernization (IPTM) effort, this training supports individuals working towards Firing Boss, Single Resource (FIRB) incident qualifications.

This blended course combines online and instructor-led training to provide students with the knowledge and skills required to perform the duties of the FIRB, as described in the NWCG Incident Position Standards for Firing Boss, Single Resource, PMS 350-105.

Any changes to qualification pathways will take effect with the next update of the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1, scheduled for January 2026.

References:

S-219, Firing Operations (Blended)

NWCG Firing Boss, Single Resource Position Page

Wildland Fire Learning Portal