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MARADMIN 352/26

Update to Interim Guidance for Chemical, Biological, Radiological, and Nuclear Defense Readiness Reporting, Training, Equipping, and Exercise Certification

This MARADMIN provides updated interim guidance for Chemical, Biological, Radiological, and Nuclear Defense (CBRND) readiness reporting, training, equipping, and exercise certification for Marine Corps units. It establishes three evaluation factors for CBRND readiness: individual and team training (Factor-1), Mission Essential Tasks under CBRN conditions (Factor-2), and equipment supply levels (Factor-3), with specific criteria for assigning Training Levels (T-1 through T-4) and Supply Levels (S-level). This message cancels MARADMIN 141/25 and takes precedence over conflicting guidance until referenced policy documents are updated.

Issued: August 4, 2026
1.  This is a HQMC PP&O (POP/POR/POF), HQMC I&L 
(LPM/LPO/LPS), TECOM (MAGTF TC G-3, policy and standards division),
 MCICOM (G-3/5), MARFOR readiness and exercise offices, and MEF 
readiness and exercise offices coordinated message. 
2.  Purpose.  This MARADMIN provides interim guidance for CBRND 
readiness reporting specific to training, equipping, and assessment
/certification in accordance with references (a) through (e).  This 
MARADMIN cancels MARADMIN 141/25. 
3.  Background.  The Marine Corps organizes, trains, equips, and 
certifies forces through exercise‑based scenarios to ensure the 
operating forces can operate, survive, and accomplish assigned 
missions in Chemical, Biological, Radiological, and Nuclear (CBRN) 
environments.  This approach enables forces to execute required 
Mission Essential Tasks (METs) in support of Combatant Commanders 
and designated Joint Force Commanders when facing a CBRN threat or 
hazard. 
4.  CBRND training and equipment factors.  CBRND readiness is 
evaluated across three factors, as outlined in paragraphs 4.a. 
through 4.d.  Commanders will assess and assign their units' CBRND 
Training Levels (T‑level), Supply Levels (S‑level), and overall 
CBRND Level using these factors, and applicable reason codes 
resident in the Defense Readiness Reporting System – Strategic 
(DRRS-S) that identify limiting factors.  When the overall CBRND 
Level is below Level 1, commanders will forecast an improvement date
and briefly describe the actions required to achieve an overall 
Level 1 or explain why such a date cannot be determined. 
4.a.  Factor-1: CBRND individual and team training.  
4.a.1.  Individual and initial team training requirements. 
Service-level individual training requirements include the CBRND 
Individual Training Standards (ITS), the CBRND Individual Protective 
Equipment Confidence Exercise (IPECE), and initial team training, as 
outlined in reference (b) and (d), and are reported in the Marine 
Corps Training Information Management System (MCTIMS) as CBRND 
annual training and initial CBRN Defense Team training.  Individuals
and teams are only required to complete Marine Common Skills (MCS)
 or performance steps that are supported by the unit Table of 
Equipment (T/E).  
4.a.2.  CBRND Team designation.  Commanders will conduct analysis to
assess the requirement for CBRND Teams based on the threat and 
available resources, in accordance with the T/E.  These teams will 
be tailored to mission requirements and scalable to meet the demands 
of the evolving operational environment and threat conditions, 
thereby enabling more efficient resource allocation and 
prioritization of training toward increasingly refined mission sets.
Where practical, MEF and MSC commanders should codify team 
requirements in the appropriate standing operating procedures. 
4.a.3.  MCTIMS is the sole authoritative data system for tracking, 
recording, evaluating, and reporting individual and collective 
service-level CBRND training requirements.  In accordance with 
reference (a), this includes all unit-level prescribed individual 
and team CBRND training requirements. 
4.a.4.  Reporting. Units shall report only the overall CBRND 
training status percentage generated by MCTIMS in DRRS-S. This 
percentage is the sole authoritative, real-time assessment of unit
compliance with all service-level CBRND individual and team
training requirements and shall be used for readiness assessments 
and inspection purposes. 
4.b.  Factor-2: Mission Essential Tasks (METs) evaluated under CBRN 
conditions.  
4.b.1.  Go-level commands will assess their subordinate commands' 
Mission Essential Task Lists (METLS) to identify and publish an 
authoritative list of METs for training and evaluation under CBRN 
conditions.  Commands will report METS designated for execution 
under CBRN conditions as Factor-2 data in DRRS-S.  During 
service-level METL reviews, services will incorporate these specific
METS as mandatory for execution under CBRN conditions.  
4.b.2.  Reporting.  In accordance with reference (c), commanders 
will provide a subjective assessment of their units' readiness to 
accomplish applicable METs under CBRN conditions, excluding any METs 
waived as discussed in paragraph 4.b.1.  
4.c.  Determining CBRND T-level: 
4.c.1.  T‑1: the unit has satisfied the criteria for T‑3 and has 
completed an evaluated exercise under CBRN threat conditions (e.g.,
Marine Corps Combat Readiness Evaluation, Service Level Training 
Exercise, Certification Exercise, or an externally evaluated event)
within the previous 12 months or the current deployment cycle.  
Commanders will not report a T‑1 rating unless the unit has been 
formally evaluated during such an exercise or by a recognized 
external evaluation authority.  Units normally employed as smaller 
formations may base this assessment on evaluated subordinate unit 
exercises. 
4.c.2.  T-2: the unit has satisfied the criteria for T-3 and 
incorporated CBRN threat conditions into a MET-based unit level 
exercise within the previous 12 months to achieve the baseline 
level of CBRN readiness. 
4.c.3.  T-3: 80% or more of the unit is reported in MCTIMS as 
proficient in CBRND Training & Readiness (T&R) events 
contained in reference (b). 
4.c.4.  T-4: less than 80% of the unit is reported in MCTIMS as 
proficient in CBRND T&R events outlined in reference (b). 
4.d.  Factor-3 CBRND Equipment Supply Level (S‑level) 
4.d.1.  Units in possession of CBRND equipment shall determine and 
report their CBRND Equipment S‑level based on equipment physically 
possessed and maintained on unit property records, per reference 
(e).  Units shall assess only those CBRND assets for which they 
maintain direct accountability. 
4.d.2.  Non‑deployed units that do not possess CBRND equipment and
whose equipment is maintained and stored in consolidated storage 
facility, shall report S-6 for the S-Level and use the standardized 
reason code SNM, equipment not measured, and the pre‑populated 
comment in the unit's readiness report. 
4.e.  Directed comments.  In the CBRND overall comments box, 
document the rationale for the reported CBRND level, including the
Unit's CBRND training status (Factor-1), METs accomplished in 
simulated contaminated or CBRN threat environments (Factor-2), and 
the condition and availability of CBRND equipment (Factor-3).  The 
overall CBRND level is a commander's subjective assessment based on 
these factors and serves as the basis for the unit's overall CBRND 
readiness assessment. 
4.e.1.  When multiple factors contribute to a reduced overall 
rating, commanders shall select the reason code that best 
communicates the shortfall. 
5.  PP&O has identified policy and terminology discrepancies in 
references (c) and (d).  These will be corrected and codified 
during the next document review cycle.  In the event of any conflict 
related to CBRND readiness reporting, training, equipping, or 
execution of evaluated exercises, this MARADMIN takes precedence 
until reference (d) is updated and published.  MSC and MEF Readiness 
Officers and Chiefs, supported by CBRND personnel, will assist 
subordinate unit Readiness Officers in implementing these reporting 
standards.  MSC and MEF Readiness Officers and Chiefs will collect 
and consolidate all conflicting guidance and submit it to the CBRND
points of contact identified in this MARADMIN for deconfliction. 
6.  Release authorized by Lieutenant General Jay M. Bargeron, Deputy
Commandant, Plans, Policies, and Operations.