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MOS COMPARISON

BOSN vs INV

Boatswain Specialty (USCG) vs Investigations (USCG)

Intel

The Coast Guard told both of these they were "saving lives and protecting the homeland." Technically correct — the most government kind of correct.

BOSN's "about me" section would read: your answer is always longer, saltier, and more detailed than they expected, and it always begins with 'well, back when I was a BM3... INV would go with: cGIS (Coast Guard Investigative Service) handles felony investigations, counterintelligence, and protective operations for the Commandant and other senior officials. Green flags, red flags, and the deployment schedule — all below. Two DD-214s that produce two very different Indeed.com searches.

BOSNCoast Guard
Boatswain Specialty
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$88K
INVCoast Guard
Investigations
Overall ratingNo reviews yet
Do It Again
Civilian Pay
$59K
Head to Head
BOSN
INV
Getting In
ASVAB Line Scores
NOTE Warrant officers qualify via selection board and rating expertise, not ASVAB line scores
NOTE Warrant officers qualify via selection board and rating expertise, not ASVAB line scores
Clearance
None
TS/SCI
Pay Grade
Warrant Officer
Warrant Officer
Training
Training Length
10 wk
16 wk
Pipeline Type
OCS, CGA, or DCO
OCS, CGA, or DCO
Training Location
TRACEN Yorktown, VA
FLETC, Glynco, GA
Day-to-Day
Promotion Speed
Average
Average
Deployment Tempo
Moderate
Low
Career Field
Deck and Operations
Law Enforcement
After You Get Out
Civilian Median Pay
$88K
$59K
Top Civilian Career
Captains, Mates, and Pilots of Water Vessels
Private Detectives and Investigators
Credentials Earned
3 certs
3 certs

After the Uniform

The part the recruiter skips: what each job actually translates to once you're a civilian — and what it pays.

BOSNBoatswain Specialty
Civilian Median Pay
$88K/yr
What It Becomes on the Outside
Captains, Mates, and Pilots of Water VesselsStrong
Job market: Average (3%)
$88K
Captains, Mates, and Pilots of Water VesselsStrong
Ship EngineersRelated
Job market: Average (4%)
$88K
LogisticiansRelated
Job market: Faster than average (18%)
$79K
Credentials You Walk Away With
Warrant Officer qualificationUSCG licensed mariner credentialsAdvanced seamanship certifications
INVInvestigations
Civilian Median Pay
$59K/yr
What It Becomes on the Outside
Private Detectives and InvestigatorsStrong
Job market: Faster than average (6%)
$59K
First-Line Supervisors of Police and DetectivesStrong
Police and Sheriff's Patrol OfficersRelated
Job market: Faster than average (5%)
$72K
Intelligence AnalystsRelated
Job market: Average (4%)
$104K
Credentials You Walk Away With
Federal Special Agent credentialsCriminal investigation certificationsTS/SCI clearance

Salary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program. A guide, not a guarantee.

Recruiter vs. Reality

The pitch versus what people who actually did the job report back.

BOSNBoatswain Specialty
What the Recruiter Says

As a Chief Warrant Officer Boatswain, you'll be the Coast Guard's premier expert in seamanship, vessel operations, and deck force management. You'll command small boats and cutters, lead search and rescue operations, and serve as the service's most experienced mariner — a technical authority respected across the maritime world.

What It's Actually Like

You were a BM who refused to stop yelling, and the Coast Guard respected that so much they gave you a warrant officer commission. You now occupy the rarest and most feared position in the entire service: a person who knows every single thing about seamanship, deck operations, and small boat handling AND has the authority to absolutely ruin your day about it. You are a Chief Warrant Officer, which means you have more sea time than the CO, more rope knowledge than the entire deck department combined, and more opinions about mooring procedures than any human should reasonably possess. Junior officers will approach you for advice with the confidence of youth and leave the conversation aged fifteen years and questioning everything they learned at the Academy. Your answer is always longer, saltier, and more detailed than they expected, and it always begins with 'well, back when I was a BM3...' You are the living, breathing institutional memory of the Coast Guard. You remember when the cutter had a different name. You remember when that regulation was different. You remember the storm of '09 and the rescue in '14 and the time the new ensign tried to moor port-side-to and you aged a decade in ninety seconds. Your strong opinions about rope are not opinions. They are facts delivered with the authority of someone who has held a line that was the only thing between a crew and disaster.

INVInvestigations
What the Recruiter Says

As a Chief Warrant Officer Investigator, you'll lead the Coast Guard's most sensitive criminal and administrative investigations. You'll investigate maritime fraud, environmental crimes, and violations of federal law — developing expertise that positions you for senior roles in federal law enforcement and regulatory agencies.

What It's Actually Like

You are a federal agent. In the Coast Guard. Let people process that for a moment. CGIS (Coast Guard Investigative Service) handles felony investigations, counterintelligence, and protective operations for the Commandant and other senior officials. You investigate drug trafficking, fraud, sexual assault, and national security threats — the same portfolio as NCIS but with a fraction of the name recognition and zero TV shows making you famous. Your badge carries federal law enforcement authority. Your investigation skills are honed at FLETC, the same academy that trains every federal agent in the country. You work cases that cross international boundaries because the Coast Guard's operating area is the entire maritime domain, which is most of the planet. Your counterintelligence work focuses on threats to Coast Guard operations, which in the post-9/11 world means port security, critical infrastructure, and the supply chain that moves 90% of global trade. The protective services detail is essentially Secret Service work for Coast Guard leadership. You carry a weapon, execute search warrants, and build cases that go to federal court. Civilian transition is straightforward: FBI, DEA, HSI, Secret Service, and every three-letter agency recruits CGIS agents because your federal investigative experience is identical to theirs with maritime specialization on top.

The Real Life

Same dimensions, side by side. BOSN on the left, INV on the right.

Daily Life
BOSN

Serving as the senior deck professional on a cutter — leading boatswain's mates, managing deck operations, seamanship training, and small boat operations. The BOSN is the most experienced mariner on the ship and the keeper of seamanship standards.

INV

Conducting criminal investigations — fraud, drug trafficking, smuggling, assault, and other federal crimes within Coast Guard jurisdiction. CGIS investigators are federal special agents with full law enforcement authority.

Training / School
BOSN

Warrant officers are selected from senior enlisted petty officers. No formal "AIT" — your career experience IS your training. Warrant Officer Candidate School at the Coast Guard Academy is about 2 weeks.

INV

Selected from senior enlisted law enforcement personnel. Federal Law Enforcement Training Center (FLETC) in Glynco (GA) for criminal investigation training.

Physical Demands
BOSN

High. Leading deck operations on cutters in all weather conditions. Must maintain seamanship proficiency throughout career.

INV

Moderate. Criminal investigations involve fieldwork, surveillance, and physical readiness for law enforcement situations.

Where You'll Be Stationed
BOSN
Coast Guard CuttersTraining CentersSector commandsVarious operational units
INV
Coast Guard Investigative Service (CGIS) offices nationwideVarious field officesCoast Guard Headquarters (DC)
The Honest Truth
BOSN

Boatswain warrant officer is the pinnacle of the seamanship career in the Coast Guard. You are the most experienced mariner on the ship and the keeper of seamanship traditions. The honest truth: it is a tremendous honor but comes with the responsibility of being the expert everyone turns to when seas are rough and operations are complex. The civilian maritime industry values BOSN-level mariner credentials highly. Commercial shipping, offshore operations, and maritime training all hire BOSNs. The career is a continuation of BM service at its highest professional level.

INV

Investigator warrant officer is the Coast Guard's criminal investigation specialist. The honest truth: CGIS is small (about 300 agents) but handles the full range of federal criminal investigations within Coast Guard jurisdiction. You investigate drug trafficking, fraud, assault, and other serious crimes. The federal special agent credential is the same one carried by FBI and NCIS agents. The civilian career path to other federal investigative agencies is strong. For senior enlisted MEs and law enforcement professionals, this is the pinnacle of the investigative career.

Recent Reviews

BOSN
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INV
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