Judge Advocate

You are the newest attorney in the only US armed-service legal corps that prosecutes oil spills under federal maritime statute. Your UCMJ caseload is real, your Commanding Officer calls you for legal advice, and you will handle a MARPOL or environmental case before most Army JAGs have seen the outside of a legal assistance office.

You direct-commissioned as a lawyer — J.D. in hand, bar card in your wallet — ran the abbreviated officer training at TRACEN Cape May, and attended the Naval Justice School (NJS) in Newport, RI for the Basic Lawyer Course alongside Navy JAGs. Your first tour lands you at a Legal Service Command (LSC) regional office, a Sector legal office, or a Coast Guard Headquarters specialty division. Daily work is military justice: drafting charge sheets, advising the commanding officer on UCMJ action options, preparing courts-martial as trial counsel or defending servicemembers as defense counsel, and working NJP proceedings and administrative separation boards. The rest of your week rotates through legal assistance (SCRA consultations, wills, powers of attorney for deploying cutter crews), administrative law (separations, boards, CG personnel actions), and the beginning exposure to maritime and environmental law practice that is the CG JAG's institutional differentiator. The paperwork is real — every NJP package, every separation board recommendation, every court-martial record — and it is your name on the legal review line.

• 01Draft and review charge sheets and court-martial referral packages for UCMJ violations under the Manual for Courts-Martial — the military justice advisor role requires the commanding officer to trust the legal analysis, not just the recommendation.
• 02Advise commanding officers on NJP proceedings and administrative separation actions under COMDTINST M1000.6-series (Coast Guard Personnel Manual) — the CO's authority and the proper procedures for each action type.
• 03Conduct legal assistance appointments for servicemembers — Servicemembers Civil Relief Act (SCRA) protections, wills, powers of attorney, tax matters, family law issues — to the standard NJS training establishes.
• 04Apply the Oil Pollution Act of 1990 (OPA 90), MARPOL Act-implementing legislation, and the Clean Water Act to vessel casualty and marine environmental enforcement inquiries — the entry-level maritime law competency that separates CG JAGs from the rest.
• 05Write legal opinion memoranda on administrative law and operational law questions the Sector or District commander brings to the legal office — the product quality is the junior JAG's first visible institutional credential.
• 06Manage the legal assistance caseload and military justice docket without supervision at the Sector level — the small CG legal community means there is no senior associate between you and the client at most Sector billets.

• —Manual for Courts-Martial (MCM), United States — the UCMJ practice authority, updated by Executive Order. The MCM governs court-martial jurisdiction, charges, rules for courts-martial, military rules of evidence, and the punitive articles. Read Parts II (Rules for Courts-Martial) and IV (Punitive Articles) before your first case.
• —COMDTINST M1000.6-series — Coast Guard Personnel Manual — the authority on administrative separations, boards, OER governance, and the CG officer personnel system.
• —The Oil Pollution Act of 1990 (OPA 90), 33 USC 2701 et seq. — the primary federal statute governing liability for oil spills in US waters, passed after the Exxon Valdez disaster. The Coast Guard administers OPA 90 response and cost recovery; CG JAGs work the legal framework.
• —MARPOL Protocol — implementing legislation codified at 33 USC 1901 et seq. (Act to Prevent Pollution from Ships) — the federal statute implementing the international MARPOL 73/78 convention on vessel pollution. CG JAGs prosecute MARPOL criminal violations through the US Attorney network.
• —46 CFR Part 4 — Marine Casualty Investigations — the regulatory framework for Coast Guard vessel casualty investigation authority. JAG officers advise the investigation team on legal privilege, evidence, and referral to the US Attorney.
• —COMDTINST M5800-series (Coast Guard Legal Handbook, or current equivalent) — verify current instruction number against the CG Directives System — the CG JAG's operational law and legal office administration reference.

• —Naval Justice School Basic Lawyer Course complete — the entry credential for CG military justice practice and the baseline joint JAG qualification standard.
• —Military justice caseload managed without dropped deadlines — charge sheet errors, missed RCM timelines, and procedural defects that get cases dismissed are the most visible junior JAG failures in a small community.
• —Legal assistance appointments conducted and documented per LSC guidance — the CO and XO measure the JAG by whether their sailors got competent legal advice, not by whether the lawyer sounded credentialed.
• —First MARPOL, OPA 90, or environmental law matter handled — the entry-level maritime law credential that begins differentiating the CG JAG career arc.
• —OER profile clean through the LTJG reporting cycle — the field-grade slate at O-3 reads the junior OER narrative, and a CG legal community this small means rater comments propagate personally.

• —Drafting a charge sheet with the wrong MCM punitive article specification or an incorrect maximum punishment — the trial counsel error that gets the case referred improperly and puts the government attorney's competence on record.
• —Missing an RCM (Rule for Courts-Martial) procedural timeline — Article 10 speedy trial, RCM 707 120-day clock, or the investigation and referral windows. Procedural dismissals are preventable and the CO notices.
• —Providing legal assistance advice on a SCRA interest-rate reduction or foreclosure protection that misstates the statute's requirements — the servicemember loses money or loses a home as a concrete result.
• —Failing to identify the legal privilege issues in a 46 CFR Part 4 marine casualty investigation before witnesses are interviewed — privileged safety information commingled with law enforcement information is a case problem that is expensive to fix and easy to avoid up front.
• —Treating the small CG legal community as an excuse for informal communication — oral legal advice without a confirming memo, undocumented NJP recommendations, verbal-only separation board input. The written record is the legal product.

The good junior CG JAG is the one the Sector commander calls first, not because there's no one else, but because every prior legal product was accurate, the military justice advice was honest about risk rather than optimistic, and the maritime law research was actually done. By the second year, the LSC regional attorney knows this officer's name because the cases coming up from the Sector are well-developed — not because any one case was flashy, but because none of them arrived with a procedural hole.

You are the Staff Judge Advocate advising a District or Area commander on the legal authorities governing Coast Guard enforcement action from fisheries prosecution to oil-spill cost recovery to human trafficking interdiction on the high seas. The maritime and environmental law practice at this level has no peer in any other service's JAG corps.

LT and LCDR is where a CG JAG becomes a specialist. The Sector or District SJA role puts you as the senior legal advisor to the commander — handling operational law questions the line officers bring live from the boardroom floor: boarding authority under 14 USC, enforcement jurisdiction on foreign-flagged vessels, the legal framework for a suspected MARPOL violation on a container ship, the right response when a cutter intercepts a vessel carrying migrants under 8 USC. The military justice caseload continues and grows more complex — senior trial counsel on the harder courts-martial, the appellate practice credential if you go to the US Coast Guard Court of Criminal Appeals (CGCCA) or the Court of Appeals for the Armed Forces (CAAF). The headquaters tour at CG-LMJ in Washington places you in a specialty division branch chief seat: operational law (CG-LMJ-1), military justice (CG-LMJ-2), environmental and maritime law, international affairs (the IMO engagement, international maritime treaty practice), or legislation (the legal liaison with Congress). The Oil Pollution Act of 1990 and MARPOL criminal prosecution pipeline — the most technically intensive practice area in the CG JAG portfolio — is most commonly worked at field grade, either through US Attorney referrals or the environmental law division at HQ. The Outer Continental Shelf enforcement work and the international fisheries law cases are the senior SJA's specialty. The staff is small, the issues are real, and the commanding general calls you, not an associate.

• 01Advise a Sector or District commander on boarding authority and law enforcement jurisdiction under 14 USC 89 and applicable international law — the real-time operational law question that comes in at 0100 when a cutter has a vessel stopped in the transit zone.
• 02Lead the legal preparation and US Attorney referral for MARPOL, OPA 90, and Clean Water Act criminal enforcement cases — from the investigative file through the grand jury referral package with AUSA coordination.
• 03Manage the military justice docket at senior trial counsel level — the complex courts-martial with contested charges, credibility issues, expert witness coordination, and the appellate record the CGCCA will read.
• 04Write the operational law and administrative law opinions that shape Sector and District policy — the SJA memorandum that goes to the commander is not a research product, it is an institutional decision with legal consequences.
• 05Engage the International Maritime Organization (IMO) legal framework and bilateral fisheries enforcement agreements — the international affairs practice work that has no equivalent outside CG or NOAA legal offices.
• 06Mentor junior JAGs in military justice practice and maritime law — the small CG legal community requires the field-grade officer to function as the institutional trainer, not just the senior practitioner.

• —Manual for Courts-Martial (MCM), United States — at field grade the reference is the same but the application is deeper: senior trial counsel practice in contested courts-martial, the military judge as an institutional partner, and the appellate record discipline that governs what CAAF reads.
• —14 USC 89 (Coast Guard boarding and law enforcement authority) — the primary statutory authority for CG law enforcement at sea. The SJA who can brief the boarding officer on the legal scope and limits of 14 USC 89 authority in real time is the SJA the commander relies on.
• —Oil Pollution Act of 1990 (OPA 90), 33 USC 2701 et seq. — at field grade, the practice moves from familiarization to prosecutorial strategy: cost recovery actions against responsible parties, the National Pollution Fund Center (NPFC) legal interface, and the civil penalty framework.
• —Act to Prevent Pollution from Ships (MARPOL implementing legislation), 33 USC 1901 et seq. — the criminal enforcement statute for vessel pollution. The MARPOL prosecution pipeline runs through CG investigation, LSC legal review, and US Attorney referral; the field-grade JAG manages that pipeline.
• —UNCLOS (UN Convention on the Law of the Sea) and the relevant bilateral fisheries enforcement agreements — the international legal framework for CG enforcement authority in Exclusive Economic Zone fisheries cases and on the high seas.
• —CG Court of Criminal Appeals (CGCCA) and CAAF practice rules — the appellate practice reference for senior trial counsel and appellate attorneys managing the post-trial record.

• —Sector or District SJA performance rated by the commander's assessment of legal advice quality — the OER narrative at field grade is the commander's institutional endorsement, and in a small service the language carries directly to the O-5 board.
• —First major MARPOL or OPA 90 criminal referral coordinated to US Attorney conclusion — the environmental enforcement credential that defines the senior CG JAG's career arc.
• —Senior trial counsel qualification — the military justice credential that marks the LCDR as the go-to attorney on the complex courts-martial.
• —Headquarters (CG-LMJ) specialty division tour completed — the institutional career-broadening credential. Absence at the O-5 board shows up.
• —O-3 to O-4 (LT to LCDR) promotion board — historically high select for CG officer corps, but in a small community the institutional read of the senior JAG leadership is not anonymous.

• —Providing an operational law opinion on boarding authority without citing the specific statutory authority chain — a boarding officer who acts on legal advice that does not hold in court creates an evidentiary suppression problem and a command-relationship crisis.
• —Allowing a MARPOL investigative file to reach the US Attorney referral stage with evidentiary gaps — testimony taken without Miranda-equivalent warnings, documentary evidence without proper chain of custody, commingled 46 CFR Part 4 safety privilege and law enforcement information.
• —Writing a complex courts-martial record with appellate reversible error baked in — inadequate findings instructions, prosecutorial misconduct in closing argument, ineffective assistance issues on defense — that CGCCA then reverses after a conviction the command counted on.
• —Missing the IMO or international fisheries enforcement legal update when it changes the boarding authority or enforcement jurisdiction analysis. The field-grade SJA is expected to track changes in the international legal framework that govern CG enforcement operations — it is not the line officer's job to brief the lawyer.
• —Failing to document the legal advice given to the commander in a confirming memorandum. Oral legal advice in a small command climate becomes organizational memory without a paper trail — the SJA who does not document is the SJA who cannot defend the command's decision when the oversight inquiry arrives.

The outstanding field-grade CG JAG is the one the District commander quotes in the brief to Congress because the operational law analysis was correct, the MARPOL case held up through the US Attorney process, and the military justice docket closed without a reversal. The SJA whose junior JAGs develop into independent practitioners — because the field-grade officer invested in training rather than just signing off — is the LCDR the CG-LMJ personnel officer knows before the O-5 board convenes. In a legal community this small, the institutional read of whether the senior JAG makes the people around them better is not abstract — it is personally observed.