Effective June 1, 2019, the Retardant Crew Member (RTCM) and Mix Master (MXMS) Position Task Book will be required.
The requirement will be reflected in the October release of the PMS 310-1. Currently qualified RTCM and MXMS will remain qualified; all trainees must complete the PTB to receive qualification.
Questions? Please contact:
Interagency Airtanker Base Subcommittee
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