WASHINGTON — The U.S. Marine Corps has begun implementing the Pentagon’s revised religious affiliation system, directing Marines to review their religious designation and select from the new list of affiliation codes by September 30.
The administrative message, issued last week, marks a new stage in the implementation of the Department of Defense’s controversial reduction of military religious affiliation codes, which eliminated individual designations for numerous minority faith and belief traditions.
“Religious Affiliation Codes are maintained in Marine Corps personnel systems to support the Department of War’s stated intention to understand the religious composition of the force and inform religious ministry support planning,” the Marine Corps said in the message.
The service acknowledged that the restructuring means some Marines will no longer find their religious identity among the available choices.
Seal of the United States Marine Corps [public domain
“As a result of this change, some previously authorized faith and belief designations are no longer individually represented and have been consolidated into broader religious affiliation categories,” the Marine Corps said.
All Marines are instructed to update their Religious Affiliation Code no later than September 30, 2026, by accessing Marine Online and selecting “the most appropriate Religious Affiliation Code from the list.” Commanders are responsible for notifying Marines of the requirement and providing them a reasonable opportunity to update their records.
The Marine Corps message lists 30 standardized religious affiliation categories. Military Times reported that Marines whose previous affiliation is no longer represented will have to select from those remaining options, which include broader categories intended to encompass religious identities removed from the previous system.
The implementation follows a Pentagon overhaul of religious affiliation codes that The Wild Hunt has been tracking since June. The Department of Defense reduced a system containing more than 200 faith and belief designations to roughly 30 categories. The changes were initially outlined in a May 20 memorandum signed by Under Secretary of Defense for Personnel and Readiness Anthony Tata.
Pentagon officials said the restructuring was intended to provide chaplains with “clear, readily available information” about the religious composition of the armed forces so they could anticipate service members’ needs and plan religious support.
The Marine Corps administrative message cites subsequent Department guidance issued June 8 directing implementation of the revised system.
29th Secretary of Defense Pete Hegseth Official Portrait (DoD photo by Chad J. McNeeley)
The reduction drew criticism from organizations representing Pagans, Heathens, Humanists, and other minority faiths because many religious identities that previously had their own codes are no longer separately represented. Pagan and Heathen designations were among those eliminated.
Critics have argued that religious affiliation codes serve purposes beyond allowing individual service members to identify their faith. The data can help the military understand the size and distribution of religious communities within its ranks and inform decisions about religious accommodations, chaplaincy services, facilities, and other religious support.
The Marine Corps’ own administrative message reinforces that function, specifically stating that affiliation data are maintained to understand “the religious composition of the force” and to support ministry planning.
The revised personnel codes do not affect what service members may have engraved on their military identification tags, commonly called dog tags. Service members may continue to identify their specific religion, belief system, or no religious preference on those tags, allowing that information to remain available during medical treatment or casualty response.
The affiliation-code changes have occurred alongside other revisions to military religious policy. The Army is implementing a policy removing rank insignia from chaplains’ uniforms in favor of religious branch insignia, following Defense Secretary Pete Hegseth’s statement that a military chaplain “is first and foremost a chaplain and an officer second.”
Hegseth has also criticized elements of the Army’s approach to spiritual fitness, describing concepts contained in an Army spiritual-fitness guide as “new age notions” and directing that the guide be withdrawn.
Those developments have raised broader questions among minority-faith advocates about how the Pentagon’s changing approach to religion will affect service members whose traditions fall outside the country’s largest religious communities.
For Marines, however, the new affiliation system has now moved from Pentagon policy to personnel implementation. By September 30, every Marine must review their religious affiliation and choose the designation from the revised list that the service considers most appropriate.
The Wild Hunt has not confirmed when other branches of the U.S. military will require service members to update their religious affiliation codes.
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