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.