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0141E4

Postal Clerk

E-4 (Specialist/Corporal) · Marines

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

At Cpl you may be the senior or only NCO in a forward-deployed Military Post Office. The postal officer advises; you run the operation. When the vault is short, when the registered mail chain has a gap, when a Marine's family is asking the company 1stSgt about a missing package — that conversation starts with you. There is no hiding in a two-person section.

The Honest MOS Read
Corporal 0141 is the rank where the section depends on you directly. In the Marine Corps's small postal community, a Cpl is often the ranking enlisted Marine in a deployed Military Post Office — responsible for running the window, owning the accountability records, briefing the postal officer on the daily status, and training the one junior Marine behind him. The section chief or GySgt may be at the installation level, geographically separate from a forward element. In that configuration, you are the section. The daily operational load at Cpl builds on the LCpl skill set with a supervision and reporting layer on top. You are not just running the window — you are accountable for the window. You are not just maintaining the registered mail log — you are the Marine who signs the daily accountability status brief to the postal officer. You are not just processing the money order vault — you are the NCO who certifies the vault count. The distinction matters legally and professionally. Your signature on the log is a legal attestation under DoD 4525.6-M; the postal officer reviews it but does not redo it. Writing proficiency and conduct marks on your junior Marines is a new responsibility that shapes both their careers and yours. In a section of two, the Pro/Con marks you write on your LCpl are visible and specific — the postal officer can evaluate them directly against what he observes in the section. Write them based on observed behavior, use standards-based language, and write them on time. A Pro/Con mark that inflates a Marine who cannot run the window alone follows both of you to the next command. The Sgt board runs through the composite score system under MCO P1400.32D. At Cpl the inputs that are fully in your control are PFT/CFT, rifle qual, MCMAP belt progression, college education credits through Tuition Assistance, and the awards stack from your deployment. The inputs that depend on others are the Pro/Con marks the postal officer and section GySgt write. In a small section, those marks are written by someone who sees your work every day. Do the work well and the marks follow. Corporals Course is the required PME at this rank — it covers NCO leadership, drill, MCMAP, Marine Corps history, and the Pro/Con writing framework. Pull the slot before you need it; do not wait for it to come to you. In a small postal section, the slot does not compete against fifty other Cpls — but it also does not automatically appear. Show up to the section chief with a course preference list and get on the queue. The Sgt board cutting score for 0141 is published monthly by MARADMIN and moves with MOS inventory math. A small MOS like 0141 can have cutting scores that move significantly year to year. Pull the current MARADMIN, know where your composite sits against the cut, and manage the score-feeders with that number in mind.
Career Arc
  • 01LCpl to Cpl pin-on via composite score cutting score under MCO P1400.32D.
  • 02Assume responsibility as section NCO — proficiency and conduct marks on junior Marines, daily accountability brief to the postal officer.
  • 03Corporals Course PME completion — required before the Sgt board.
  • 04First deployed MPO leadership tour — running a forward element section as the ranking NCO.
  • 05Composite score build — MCMAP Green Belt minimum, PFT/CFT, rifle qual, Tuition Assistance coursework, awards from deployment.
  • 06Sergeants Course nomination — section chief nominates, postal officer endorses.
  • 07Sgt cutting score tracked monthly against composite; pin-on on first eligible cycle.
Common Screwups
  • ×Inflating Pro/Con marks for a Marine who cannot run the window independently. The next command finds out on the first field deployment, and your credibility as the section NCO goes with it.
  • ×Signing a vault reconciliation or accountability log entry you did not personally verify. Your signature is a legal attestation; the postal officer is not your backstop.
  • ×NJP or DUI — at Cpl with a confirmed misconduct event, the trust that a postal NCO requires from the postal officer and the commanding officer is functionally gone. Separation under MARCORSEPMAN is the likely outcome for a Cpl with any financial or conduct misconduct.
  • ×Skipping the Corporals Course slot because the section is operationally busy. The board checks the record, not the justification. One missed slot that does not get rescheduled adds six months to the Sgt timeline.
  • ×Physical fitness failure at Cpl rank — the postal section is a two or three person team and the CO knows every score by name. A 2nd-Class PFT at Cpl is a Pro/Con conversation, not a private matter.

A Day in the Life

  • 0500Wake. Phone check — any liberty incidents, any issues with the junior Marine overnight. PT uniform on, head to the company area.
  • 0530PT formation. You take accountability for your section Marines and report to the company gunny or 1stSgt. In a two-person section, both of you are visible by name.
  • 0545–0700Unit PT with the company formation or section-led PT if the section chief has authorized a separate plan. You set the standard — if you are not running at 1st-Class pace, neither is your junior Marine.
  • 0700–0830Hygiene, chow, change into utilities. Pre-open the section: forms stocked, log reviewed from previous close, vault counted, incoming mail delivery status confirmed. Window opens on time.
  • 0830Morning formation and company tasking. Confirm the section's schedule for the day — any special mail delivery, any discrepancy follow-up, any congressional inquiry response due.
  • 0900–0930Daily accountability brief to the postal officer — registered mail status, money order log balance, open discrepancy status, any priority mail items. One page, truth only.
  • 0930–1130Window operations. Run the window; supervise the junior Marine on the window when the volume allows training reps. Log every transaction in real time. Distribution run when the incoming sort is complete.
  • 1130–1300Window close for chow. Pre-close vault count. Lock registered mail vault and secure. Junior Marine eats with peers; you eat with the section NCOs or alone depending on section size.
  • 1300–1500Afternoon window or section admin. Pro/Con mark preparation for the current cycle — review the junior Marine's observable behavior against the standards, draft the mark. Training tasks if the T&R record has open items. Discrepancy follow-up if there are open reports.
  • 1500Window close. Vault count: sequence matched, cash counted, log balanced, sheet initialed, vault locked. Registered mail log reconciled against pieces in vault. Any gap gets a same-day status note.
  • 1530Final formation. Next day's schedule. Sensitive items secured. Section SOP close-out completed.
  • 1630Liberty call on standard garrison schedule. Duty, working party, or field rotations as assigned.
  • 1700–2000Personal time. Company gym — 1st-Class fitness is the standard, not a goal. Tuition Assistance coursework if enrolled. MCMAP prep. If the junior Marine calls with a problem — financial, marital, family — you answer.
  • Deployed / forward elementYou are the senior Marine in the forward MPO. Mail arrives on the logistics run. The accountability standard is identical to garrison. The junior Marine watches what you do and runs the section the same way when you are unavailable. Make sure what they see is worth copying.

Weekly Cadence

The Cpl postal NCO's week runs on the same dual rhythm as the LCpl's — the unit schedule and the section accountability schedule — with an NCO administration layer added. Monday restarts the accountability cycle: registered mail status summary to the postal officer, week-ahead training plan for the junior Marine, and any Pro/Con mark preparation due this cycle. The Monday morning review with the postal officer sets the week's operational priorities. Mid-week is the section's steady state: window ops, distribution runs, vault counts, log maintenance, and the ongoing task sign-off work for the junior Marine's NAVMC 3500.33 individual tasks. The Cpl who runs a disciplined mid-week is the one whose Friday close-out is a routine, not a scramble. The accountability records that are current on Tuesday are easy to review on Friday; the records that drifted during the week are a Friday afternoon problem. Fridays are the section's administrative consolidation point: the week's records reviewed before the weekend, any open discrepancies with a current status note, the section's training record updated against actual training completed. Field operations and deployment cycles compress all of this into whatever the operational situation allows — the vault travels, the log travels, the accountability standard travels. The Cpl who can run a clean section in garrison is the Cpl the postal officer trusts to run a clean forward MPO in the field.

Key Skills — How to Drill Each

  1. 01
    Run a complete Military Post Office as the ranking NCO — window ops, mail sort, accountable mail log, money order vault, customs processing — without a supervisor in the building.
    The standard you hold is whether the postal officer can walk in unannounced and find the records current, the vault balanced, and the distribution done. Build the section SOP from the procedures in DoD 4525.6-M and USPS Publication 38, and run it the same way every day. The section SOP is your backup when the routine is interrupted — when the logistics run is late, when the junior Marine is sick, when the commanding officer needs a mail accountability status brief in the next hour. Know the SOP cold enough to run it alone.
  2. 02
    Brief the postal officer on daily accountability status — registered mail receipts, money order log balance, discrepancies, damaged or delayed pieces — one page, no surprises.
    The daily brief is the section's accountability record to the postal officer. Build a standard brief format: date, total pieces received and distributed, registered mail status (pieces in vault, pieces delivered and signed for, any open gaps), money order status (sequence current, vault balanced, any discrepancies), open discrepancy report status. Brief the truth — the postal officer finds out about gaps on the audit, not from your brief, if you soften the picture. The postal officer who can trust your daily brief is the postal officer who goes to bat for your Pro/Con marks at the end of the cycle.
  3. 03
    Conduct a vault inspection at the close of every operating window — money order stock sequenced and counted, log balanced, discrepancy procedures initiated if something does not reconcile.
    The vault inspection is not a check — it is the accountability record for the day's money order operations. Run the sequence count against the log, count the remaining cash against the sales total, initial the reconciliation sheet, and lock the vault with the key secured per section SOP. If the count does not reconcile, initiate the DoD 4525.6-M discrepancy procedure before you leave — do not hope it resolves overnight. An unresolved shortage that surfaces on the next morning's count is worse than a discrepancy that was identified and documented the night before.
  4. 04
    Write proficiency and conduct marks for junior postal Marines that the postal officer can sign without editing.
    Pro/Con marks are the primary feed into a junior Marine's composite score. Write them based on specific observed behavior: what the Marine did, what standard they met or missed, what the result was. Do not inflate and do not crush — write what you saw. The postal officer evaluates your Pro/Con marks against his own observations; if your mark says 'outstanding performance in all areas' and the postal officer saw the Marine take three attempts to balance the vault, the section chief is having a conversation with you, not with the junior Marine. Write honest marks from day one.
  5. 05
    Process a postal discrepancy or lost mail claim under DoD 4525.6-M — initiate the form, document the chain of custody, escalate to the postal officer with a clean paper trail.
    Discrepancies happen. The difference between a discrepancy that closes cleanly and one that becomes an Inspector General finding is whether the paperwork was initiated the day the gap appeared and documented consistently through resolution. Pull the DoD 4525.6-M discrepancy procedures chapter and read it before you have your first discrepancy — not after. When a registered piece is unaccounted for, initiate the form the same day, document the custody chain from the last confirmed signature forward, and give the postal officer a clean paper trail within 24 hours of discovering the gap.
  6. 06
    Train a junior Marine through the NAVMC 3500.33 individual tasks — demonstrate, supervise, sign off — because in a two-person section, the other person's competence is your operational redundancy.
    Training in a postal section is not a classroom exercise — it is demonstrated execution at the window, under supervision, until the Marine can run the task without prompting. Walk through each NAVMC 3500.33 individual task in sequence: demonstrate it at the window with the junior Marine watching, supervise the junior Marine running it with your oversight, then sign the task off when they can execute it independently. Keep the task sign-off current in the section's training record. When you are sick or in the field, the section keeps running because the junior Marine is task-qualified.

Manuals & References — What Chapters Matter

  • DoD 4525.6-M — Department of Defense Postal Manual
    At Cpl, this is the governing document you now run the section from, not just learn from. Chapter 7 (money order accountability) and Chapter 11 (accountable mail discrepancy procedures) are the two chapters you need to know cold — they define every procedure you certify daily with your signature. Read the audit procedures chapter before your first accountability audit. When something goes sideways, the postal officer opens DoD 4525.6-M; you should have already read the relevant chapter.
  • MCO P1000.9 — Marine Corps Postal Regulations
    The Corps-level postal policy implementation. At Cpl you are now implementing it, not just following it. The accountability and inspection sections define the standards the postal officer holds you to; the privacy sections define the legal obligations you hold your junior Marine to. Know the document well enough to brief the junior Marine on what it requires, not just to comply yourself.
  • USPS Publication 38 — Postal Operations Manual for overseas/military post offices
    The technical reference for every window procedure you train your junior Marine on. The customs sections are the most error-prone area for junior Marines — train from the publication, not from memory. When you brief a junior Marine on outgoing international mail procedures, open the publication and walk through it together.
  • NAVMC 3500.33 — Administrative MOS Training and Readiness Manual
    At Cpl you sign off your junior Marines on 1000-level individual tasks and you are evaluated on 2000-level section tasks. Print the task lists for both levels and track them as a living document in the section training record. The unit T&R review checks completion against the task list — not against your verbal assurance that training happened.
  • MCO 1610.7 — Performance Evaluation System
    You write proficiency and conduct marks on your Marines at Cpl. The criteria for each mark level, the narrative format for the Section A block, and the relative value mechanic that drives the Sgt board are all in this document. Read it before you write your first Pro/Con mark — not after.
  • MCO P1400.32D — Marine Corps Promotion Manual (Enlisted)
    The Sgt board runs through composite score mechanics defined here. Know which inputs you control (PFT/CFT, rifle qual, awards, MCMAP, education) and which depend on others (Pro/Con marks). Pull the monthly MARADMIN for the current 0141 Sgt cutting score before you ask the section chief where you stand on promotion timeline.

Standards — How to Hit Each

  • Corporals Course graduate — required PME at the Cpl rank, required before the Sgt board.
    Slot through the section chief's nomination. In a small postal section, the nomination queue is thin — show up to the section chief with a course preference list and ask to be put on the queue. Do not wait for the slot to come to you. Corporals Course covers NCO leadership, drill, MCMAP, Marine Corps history, and Pro/Con writing — the curriculum reinforces the work you are already doing as a section NCO. Missing it is the kind of gap that adds time to the Sgt timeline.
  • Zero registered mail accountability gaps on the daily log — every piece from receipt to delivery.
    At Cpl, the accountability standard is yours to enforce on yourself and your junior Marine. Run the daily reconciliation as a routine, not an exception: count the vault pieces against the log at every close, verify every delivery signature within 24 hours of distribution, and initiate the discrepancy report the same day a gap appears. The gap that gets documented and reported closes cleanly; the gap that gets discovered on audit closes with a finding.
  • 1st-Class PFT and 1st-Class CFT maintained every cycle.
    In a section of two or three Marines, the CO knows your score and the section chief writes it into context on your Pro/Con marks. 1st-Class is the floor, not the ceiling. Maintain a training routine that runs the PFT and CFT events on your own time — pull-ups, run, CFT events — so that the semi-annual test is a validation of the work you already did, not a high-stakes single attempt.
  • Composite score tracked monthly against the 0141 Sgt cutting score published by MARADMIN.
    Pull the monthly MARADMIN and check the current 0141 Sgt cutting score against your composite. The composite inputs you control — PFT/CFT, rifle qual, MCMAP belt, education credits, awards — are manageable if you track them proactively. Stack every available score-feeder: Tuition Assistance college courses (worth composite score credit), every award packet the section chief is willing to submit, MCMAP belt progression, and the PFT/CFT numbers. A Cpl who knows his composite to the decimal point is the Cpl who pins Sgt on the first look.
  • Section T&R individual and section-level task completion current under NAVMC 3500.33.
    At Cpl you maintain your own individual task completion and sign off your junior Marine's individual tasks. Keep both task records current in the section training log — not in your head. The unit T&R review is a records check, not a verbal attestation. When the unit training officer asks for the section's T&R status, the records answer.

Technical Mistakes — Concrete Consequences

  • Skipping the end-of-day vault count because nothing looked unusual.
    A shortage discovered a week later traces to the day the count was skipped. At Cpl, your vault count is the day's legal accountability record — the postal officer reads it as a closed loop. An unexplained shortage that cannot be traced to a specific operating day is harder to resolve than one caught the day it appeared. Count the vault every close.
  • Signing off an accountability log entry you did not personally verify.
    In the postal world, your signature is a legal attestation that the chain of custody is intact. A log entry you signed but did not verify is a gap in the chain that you own. When the discrepancy report is filed and the postal officer traces the custody chain, your signature is the evidence. Sign only what you verified.
  • Running a discrepancy verbally without initiating the DoD 4525.6-M paperwork.
    A verbal assurance that you looked into the issue is not a discrepancy report. When the Inspector General reviews the deployment package, an unpapered verbal resolution of a registered mail gap is a finding. Initiate the form the day the gap appears. Document every contact with the addressee, every chain-of-custody check, every status update. The paper trail is the resolution.
  • Training a junior Marine by letting them watch rather than requiring them to execute.
    Observation training produces a Marine who watched someone do the task. When the section goes to two people in the field and you are the one who is sick, the Marine who only watched is not running the window — you are, from your bunk. Require execution under supervision. Sign off the task only when you have seen the Marine run it independently.
  • Giving a Marine waiting at the window an estimate about a lost package without checking the accountability log first.
    Wrong information given in good faith is still wrong information. The 1stSgt tracks the complaint back to the section, the postal officer hears about it, and your credibility as the section NCO — which is built on the accuracy of your accountability records — takes a hit. Check the log before you answer. If the answer is 'I need to research this and get back to you,' say that.

Career Decisions at This Rank

  • Re-enlistment versus EAS — stay for the Sgt pin-on or get out at Cpl
    The Sgt pin-on materially changes the post-service market. A Cpl who ETSs brings NCO-equivalent leadership experience and the postal accountability skill set; a Sgt who ETSs brings all of that plus a section-chief leadership record, a deployment as the senior Marine, and a stronger federal preference hiring profile. USPS federal preference hiring, federal government administrative positions, and the DoD civilian workforce (logistics, administrative, finance) all value the 0141 accountability experience — and the Sgt rank adds a visible credential to that experience. Run the math with and without the re-enlistment bonus (pull the current MARADMIN for 0141 SRB rates); factor in whether you want the Sgt tour before making the decision.
  • Corporals Course in-residence versus distance education through CDET
    In-residence Corporals Course runs at regional Marine Corps NCO academies (Camp Lejeune, Camp Pendleton, Okinawa equivalents); the distance education option runs through the College of Distance Education and Training (CDET). In-residence is the preferred option — the networking, the instruction quality, and the selection board read of in-residence versus distance PME are all materially different. In a small postal section where the slot does not compete against dozens of Cpls, pulling the in-residence slot is realistic if you ask early and plan around the section's operational schedule. Do not default to distance because it is convenient.
  • Commissioned officer path via MECEP or ECP
    The Marine Enlisted Commissioning Education Program (MECEP) and Enlisted Commissioning Program (ECP) are the active-duty commissioning routes for Marines with college credits or a completed bachelor's degree. The 0141 Marine who wants to commission should understand that the administrative and logistics officer community values the postal accountability background — there are officer billets in the adjutant and logistics fields that build directly on the 0141 enlisted experience. The honest test: are you better at running a section or at building policy and managing multiple sections from a higher level? Cpls who keep asking why the system works the way it works often make better officers than Cpls who are excellent at executing the system they have.
  • Lateral move to 0151 (Financial Management Resource Analyst) or other admin MOS
    The 0151 lateral is the closest skill-adjacent option — financial accountability, transaction records, and federal financial management replace the postal accountability functions. The skills are transferable but the training pipeline is different, and the reclass process requires time in an MOS school. The honest math: if you are building a clean 0141 record and a Sgt-track composite score, the lateral move costs you time and resets the clock on the new MOS promotion ladder. Move only if you have a specific reason to prefer the destination MOS, not just to avoid the postal tour.

How the Seat Varies by Unit Type

  • Installation postal section at a large base (MCB Lejeune, Pendleton, Hawaii, 29 Palms, Okinawa)
    Higher mail volume, more staff, more established operating procedures. The Cpl NCO at an installation postal section is managing a section that has the infrastructure to support the work — dedicated postal facility, established distribution routes, coordination with the installation postal officer. More complex operations but more resources. The training reps come faster at high-volume installations.
  • Forward-deployed MPO — battalion-level deployed package
    This is where the Cpl earns the title of section NCO for real. Two or three Marines, a deployed environment, mail arriving on the logistics schedule, and no backup postal officer to call when the vault count does not reconcile. The accountability standard is identical; the conditions are not. The Cpl who ran a clean section in garrison is the Cpl the postal officer trusts with the forward MPO.
  • MEU deployment aboard amphibious shipping
    The postal section operates within the ship's mail coordination framework. The Marine Corps section handles unit-level accountable mail; the ship's postal division handles the broader ship's mail. Coordination between the two is a daily task. The Cpl who understands both systems is the one the postal officer sends to coordinate directly with the ship's postal department.
  • Very small unit or detachment — security force, MSG, embassy support
    At a very small unit, the Cpl may be the only 0141 Marine — no junior Marine, no section chief within immediate reach, just the postal officer and a Marine who has to know the job cold. This assignment is uncommon at the Cpl level but possible for Marines at embassy security or security force detachments. The operational isolation makes the technical proficiency requirement higher, not lower.

What Good Looks Like at This Rank

The good Cpl postal NCO is the Marine the postal officer can put on a forward deployed MPO with one junior clerk and not think about for a week. The window opens on time, the vault balances every day, the registered mail log is clean before the postal officer asks, the discrepancy report is already initiated when something goes sideways, and the postal officer's daily brief is on his desk before he calls for it. His junior Marine can run the window solo when the Cpl takes leave — because the task sign-off in the training record is real, not aspirational. The Pro/Con marks he writes on his Marine are specific and honest: they name the tasks the Marine executes well and the tasks that need development, and the postal officer signs them without editing because they describe what he has seen. The section's NAVMC 3500.33 task completion is current, the Corporals Course is behind him, and the composite score is building the way it should. By the time the section GySgt has the Sgt board conversation with him, the case is already made: 1st-Class fitness held every cycle, Expert rifle qual, MCMAP belt stack progressing, Tuition Assistance courses completed, awards submitted. The Sgt pin-on comes on the first eligible look. The section chief is already thinking about putting him on the deployment package as the ranking NCO because the technical and leadership record is what it needs to be.

Preview — The Next Rank

Sgt (E-5) in a postal section means you are the senior enlisted Marine for the section — the postal officer advises, you run the operation. The shift from Cpl to Sgt is a shift from section NCO to section chief: you own the training plan, you write FitRep Section A inputs for your Cpls, you manage the accountable mail log for a battalion-sized element, and you stand up or collapse the MPO around deployment cycles. The administrative load at Sgt is real. FitRep Section A inputs for Cpls require a different standard of writing than the proficiency and conduct marks you wrote at Cpl — narrative, action-result-impact format, Section A supporting the relative value the postal officer assigns. Read MCO 1610.7 before you sit down to write your first FitRep input. The section chief who writes clean FitRep inputs is the section chief the postal officer trusts. The Sgt's relationship with the battalion S1 is new. Congressional inquiry responses, unit postal readiness briefs, and deployment planning for the MPO package all run through the S1. The Sgt who keeps the S1 informed before the S1 has to ask is the Sgt who gets the next school slot. The Sgt who briefs the S1 accurately — including the parts of the accountability picture that are not clean — is the Sgt the postal officer keeps.
FAQ

0141 E4 — Frequently Asked Questions

Q01What does a E4 0141 (Postal Clerk) actually do?
At Cpl you may be the ranking Marine in a deployed postal section supporting a battalion or a forward element — two or three people responsible for the mail accountability of an entire unit in the field.
Q02What's the most important thing to know as a E4 0141?
At Cpl you may be the senior or only NCO in a forward-deployed Military Post Office.
Q03What does a typical day look like for a E4 0141?
Time-blocked day at the E4 0141 rank tier: 0500 Wake. Phone check — any liberty incidents, any issues with the junior Marine overnight. PT uniform on, head to the company area, 0530 PT formation. You take accountability for your section Marines and report to the company gunny or 1stSgt. In a two-person section, both of you are visible by name, 0545–0700 Unit PT with the company formation or section-led PT if the section chief has authorized a separate plan. You set the standard — if you are not running at 1st-Class pace, neither is your junior Marine, 0700–0830 Hygiene, chow,…
Q04What mistakes get E4 0141 soldiers fired or relieved?
Inflating Pro/Con marks for a Marine who cannot run the window independently. The next command finds out on the first field deployment, and your credibility as the section NCO goes with it; Signing a vault reconciliation or accountability log entry you did not personally verify. Your signature is a legal attestation; the postal officer is not your backstop; NJP or DUI — at Cpl with a confirmed misconduct event,…
Q05What career decisions matter most at the E4 0141 rank tier?
Re-enlistment versus EAS — stay for the Sgt pin-on or get out at Cpl — The Sgt pin-on materially changes the post-service market. A Cpl who ETSs brings NCO-equivalent leadership experience and the postal accountability skill set; a Sgt who ETSs brings all of that plus a section-chief leadership record, a deployment as the senior Marine, and a stronger federal preference hiring profile. USPS federal preference hiring, federal government administrative positions, and the DoD civilian workforce (logistics, administrative,…
Q06What's next after E4 for a 0141 (Postal Clerk) in the Marines?
Sgt (E-5) in a postal section means you are the senior enlisted Marine for the section — the postal officer advises, you run the operation.
Q07What manuals and regulations does a E4 0141 need to know cold?
DoD 4525.6-M — Department of Defense Postal Manual (the governing document for every accountability and discrepancy procedure you initiate as section NCO).; MCO P1000.9 — Marine Corps Postal Regulations (the Corps-level policy your postal officer enforces and you implement).; USPS Publication 38 — Postal Operations Manual for overseas/military post offices (the technical reference for window operations and APO mail processing).

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards