01 / Occupational profile
Your 0311 occupational profile
Hazardous noise
Common occupational factor
Rifle and grenade-launcher fire on ranges and in combat routinely exceeds hearing-hazard thresholds, and infantry MOSs are treated as high-probability noise occupations in VA's adjudication guidance.
Load carriage and physical demands
Common occupational factor
Sustained movement under a combat load is intrinsic to the rifleman MOS and is documented in Marine Corps physical-readiness and injury-surveillance literature.
Blast and combat-trauma exposure
Assignment-dependent
Blast exposure depends heavily on deployment and unit — IED encounters, breaching, and enemy contact occurred in some rifleman assignments and not others.
Deployment-dependent exposures
Location-dependent
Service on or near installations with open burn pits or other airborne hazards during PACT Act–covered periods may bring a claim within the presumptive framework; service elsewhere does not.
Combat and operational stress
Assignment-dependent
Rifleman assignments carry an elevated likelihood of direct combat exposure during deployment, though this remains individual to the unit and deployment.
02 / Your service
What did you actually do?
Your MOS is the starting point. Your actual assignment, era, equipment, location, and duties determine which parts of the occupational history are relevant. Use the Evidence Builder below to select your actual duties and see records that may corroborate them.
Rifleman duty centers on dismounted infantry movement: humping a fighting load or full deployment pack over distance, occupying and improving fighting positions, and employing the M4 or M16 service rifle along with the M203/M320 grenade launcher in training and combat. Marines rotate through fireteam and squad positions, conduct mounted and dismounted patrols, and — in the post-9/11 era — frequently deployed to Iraq or Afghanistan where dismounted patrolling added IED and small-arms-contact risk. Garrison time includes weapons ranges, field exercises, and physical training built around load-bearing movement.
Load and operational tempo differ by era. Post-9/11 riflemen frequently carried heavier body armor and equipment sets on repeated Iraq and Afghanistan deployments than earlier-era Marines, and dismounted patrolling in Helmand or Anbar province added blast and heat exposure that a peacetime rifleman would not have.
Duties that may vary by assignment
- Foot movement carrying a fighting load or full pack ("humping") over rough terrain, often for days at a time
- Live-fire qualification and training with the M4/M16 service rifle, M203/M320 grenade launcher, and hand grenades
- Occupying, digging, and improving fighting positions; prolonged kneeling and prone firing positions
- Mounted and dismounted patrolling, including urban and rural combat environments during deployment
- Repetitive lifting of ammunition cans, water, and squad-level gear
- Field living: sleep deprivation, weather extremes, dust, and — for post-9/11 deployments — proximity to burn pits
Related historical codes: 0300 (basic infantry MOS series entry point for 03xx assignments)
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Military Occupational Evidence Builder
Based on what you actually did in the military, what records might document it? Select only what applied to you. No name, file number, contact details, free text, or upload. Nothing is saved or sent.
Military service
Marine Corps · 0311 Rifleman
For another specialty, open its guide from the MOS library. A job code alone does not establish individual duties or exposure.
Era(s) of service
Deployments
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Your Evidence Builder identifies records that may document your service history. If VA has already decided your claim, the next question is different: what did VA accept, what did VA reject, and why?
Request a free decision review03 / Corroboration
Building your occupational history
Records matter because they can connect a job title to an individual's actual work and circumstances.
Hazardous noise
Records that may corroborate it
- · Hearing-conservation audiograms (DD 2215 entrance / DD 2216 periodic) and DOEHRS-HC records
- · Marine Corps Basic Training Record and MCTFS entries showing range and qualification periods
- · Fitness reports referencing weapons training or combat deployment
Limit: Documented noise exposure supports the event element only. A current hearing-loss disability under 38 CFR § 3.385, or a current tinnitus complaint, and a medical link to service are still required.
Load carriage and physical demands
Records that may corroborate it
- · Fitness reports describing field exercises, deployments, and physical fitness test results
- · Sick call and physical therapy entries in the health record
- · Limited-duty (LIMDU) chits and any Physical Evaluation Board documentation
Limit: That the MOS commonly involves heavy loads does not establish that a specific joint was injured in service; a current diagnosis and a nexus are still needed.
Blast and combat-trauma exposure
Records that may corroborate it
- · Line-of-duty determinations, after-action reports, and Purple Heart or Combat Action Ribbon citations
- · Post-Deployment Health Assessment / Reassessment (DD 2796 / DD 2900) entries
- · Contemporaneous medical entries describing an altered-consciousness event
Limit: A combat award does not diagnose a traumatic brain injury. Residual disability still requires current clinical findings tied to the event.
Deployment-dependent exposures
Records that may corroborate it
- · Deployment orders and unit deployment histories
- · DD-214 remarks block listing deployments and campaign credit
- · Airborne Hazards and Open Burn Pit Registry participation
Limit: The 0311 MOS itself says nothing about where a Marine served. Presumptive status turns on documented location and dates, not the job title.
Combat and operational stress
Records that may corroborate it
- · Combat Action Ribbon, award citations, and unit command chronologies
- · VA Form 21-0781 stressor statement and buddy statements from fellow squad members
- · Behavioral-health treatment entries during or after service
Limit: A documented stressor is one element of a PTSD claim. A diagnosis meeting DSM-5 criteria and a link between the stressor and the diagnosis, under 38 CFR § 3.304(f), are also required.
04 / Evidence standard
What your MOS can — and cannot — establish
May help document
Work performed, circumstances of service, consistency of an alleged exposure, and the nature or duration of duties where supported by individual records.
Does not automatically establish
A diagnosis, medical causation, severity, percentage, presumption, or entitlement to service connection.
05 / Medical evidence
Conditions that may be relevant to the occupational history
This is not a list of conditions to claim. A veteran's actual diagnosis and individual service record determine relevance; occupational evidence is not medical causation.
Hearing +
Tinnitus
Why the occupation may matter: Rifle and grenade-launcher fire is a recognized hazardous-noise source, and infantry MOSs are treated as high-probability for noise exposure.
Records and clinical evidence: A current report of persistent tinnitus and a lay account of onset and continuity; audiometric threshold shifts help but are not required for tinnitus.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Sensorineural hearing loss
Why the occupation may matter: Cumulative impulse noise from small arms and grenade launchers is associated with high-frequency hearing loss.
Records and clinical evidence: Audiometry meeting the 38 CFR § 3.385 thresholds, entrance/separation comparisons, and an opinion addressing the pattern of loss.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Lumbar spine +
Lumbar strain and degenerative disc disease
Why the occupation may matter: Sustained load carriage places cumulative axial stress on the lumbar spine over an enlistment.
Records and clinical evidence: Current imaging and range-of-motion findings, in-service treatment or fitness-report references to field duty, and an opinion addressing cumulative loading.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Knees +
Patellofemoral pain and degenerative arthritis
Why the occupation may matter: Marching under load and repeated kneeling in firing positions are recognized mechanical stressors on the knee.
Records and clinical evidence: Current diagnosis with measured range of motion, and documentation of in-service onset or continuity.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Ankles and feet +
Ankle instability and plantar fasciitis
Why the occupation may matter: Movement over uneven terrain under load is a documented mechanism for recurrent ankle sprain and plantar heel pain.
Records and clinical evidence: Treatment records, current examination findings, and evidence of in-service onset where a foot condition did not preexist service.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Mental health +
PTSD and depressive disorders
Why the occupation may matter: Direct combat exposure is more likely for riflemen who deployed to combat zones, though it remains individual.
Records and clinical evidence: A DSM-5 diagnosis, a described and where possible corroborated stressor, and treatment records showing occupational and social impairment.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Neurologic / TBI +
TBI residuals and headaches
Why the occupation may matter: Blast and impact events occur in this MOS during combat deployments, though not in every career.
Records and clinical evidence: Documentation of the event, contemporaneous or later-reported symptoms, and current neurological findings evaluated under the DC 8045 facets.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Respiratory +
Asthma, rhinitis, and PACT Act presumptive conditions
Why the occupation may matter: Relevant only where deployment location and dates place the Marine within a covered exposure period.
Records and clinical evidence: Deployment documentation establishing location and dates, current pulmonary testing, and a diagnosis on the presumptive list.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
06 / Exposure record
ILER and toxic exposure
For applicable exposure-related claims, VA may review the Individual Longitudinal Exposure Record (ILER) and a toxic exposure risk activity (TERA) memorandum along with deployment and occupational records. An ILER entry does not automatically establish exposure or service connection.
07 / After a decision
Why a 0311 claim may still be denied
An exposure finding is not the same as a grant. These are examples from the researched guide, not predictions about a particular case.
VA may accept
A duty or event consistent with the service record
But may deny
A diagnosis, medical relationship, or rating element
Record to examine
Decision findings, service and private treatment records, examination rationale, and medical opinions.
Noise exposure conceded, hearing claim denied for lack of nexus
VA frequently accepts that a rifleman was exposed to hazardous noise, then denies based on an audiologist's opinion that current loss is unrelated, often citing normal separation audiograms. A normal separation audiogram alone does not defeat a hearing claim, so the examiner's rationale is usually the real issue.
No current diagnosis for a claimed joint
Reports of chronic knee or back pain without a current diagnosed disability, or without functional-impairment evidence under Saunders v. Wilkie, are commonly denied at this threshold step.
Examiner relies on absence of sick-call visits
Many riflemen did not seek treatment in the field. An opinion built mainly on a quiet service treatment record, without addressing the Marine's lay account of onset and continuity, may be inadequate under Barr v. Nicholson.
Gap between separation and first treatment cited against the claim
A long delay before civilian treatment invites a finding that the condition developed later. Buddy statements and early post-service records help address this.
Rating understates severity documented at exam
A grant may still understate severity when the exam captures a single range-of-motion measurement without addressing flare-ups or repetitive-use loss under 38 CFR §§ 4.40, 4.45 and Correia v. McDonald.
Deployment established, but claimed condition isn't linked to the specific exposure
A combat deployment may be well documented while the claimed condition is neither presumptive nor supported by a medical opinion tying it to the exposure claimed.
Oakridge Claims / Appeals Focused
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0311 questions
Does being an 0311 automatically qualify me for tinnitus benefits?
No. Rifleman service supports the in-service noise-exposure element, since infantry MOSs are treated as high-probability noise occupations. A grant still requires a current tinnitus report and a medical link to service.
I never went to medical for my back or knees in the fleet — does that end my claim?
Not necessarily. Field infantry Marines often did not seek treatment. Your own account of onset, fitness reports describing field duty, and buddy statements can help fill that gap.
Can VA deny hearing loss even after admitting I was exposed to rifle and grenade-launcher noise?
Yes. Conceded exposure satisfies one element. A current disability meeting 38 CFR § 3.385 thresholds and a medical opinion linking it to service are also required.
Does deploying to Iraq or Afghanistan prove I was exposed to burn pits?
No. Exposure depends on the specific installation, location, and dates, not the deployment alone. Deployment orders and unit records establish those facts, which the PACT Act presumptions then apply to.
I held other MOSs before or after 0311 — does that matter?
Yes. Your Basic Training Record and MCTFS history show every MOS held. Exposure arguments can draw on any assignment documented in that record.
Can Reserve or inactive-duty infantry training support a claim?
It can, but duty status matters. Injuries during active duty for training are treated more favorably than those during inactive duty for training, which is generally limited to certain injuries and cardiac events. Orders and points statements establish the status.
What records best show what I did as a rifleman?
The DD-214 with MOS and deployments, the Basic Training Record/MCTFS history, fitness reports describing field duty, LIMDU chits, and hearing-conservation audiograms.
Sources and legal references
General education only; not legal or medical advice. Oakridge Claims is a private business, not affiliated with or endorsed by VA. Nothing here establishes a representative-client relationship or guarantees a result. Free accredited VSO help is available.