Coast Guard
MST

Marine Science Technician

Deck and Operations
Current official occupation
Live openings vary by location and recruiting needs.
Job Description

Protect the marine environment through pollution response and investigations, vessel and facility inspections, environmental compliance, and marine-safety work.

A Day in the Life

Your day begins reviewing pollution reports and inspection schedules at the marine safety unit before heading to the waterfront. When a spill is reported you respond to the scene in protective gear, sampling the water, documenting the source, and coordinating cleanup contractors. Other days you inspect vessels and facilities for environmental compliance, then write investigation reports back at the office.

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Requirements

ASVAB Requirement

ASVAB VE+AR: 109

Rank Type

Enlisted
E-1 to E-9

Maximum Rank

E-9

Initial Term

5 years

Career Info

Deployment Ratio

45%

Qualified

Yes

Recommended

Yes
Current Mil Compensation & Long-Term Benefits (FY 2026)

Every MilCareer below is paid using the same base structure: Base Pay + tax-free BAH + tax-free BAS + bonuses — plus retirement, health, and education benefits that follow you for life. The per-MOS estimates farther down combine projected lifetime compensation including these allowances.

FY 2026 Base Pay

3.8% across-the-board active-duty pay raise effective Jan 1, 2026 (on top of the targeted 10% junior-enlisted raise from Apr 2025). E-1 base $2,407/mo ≈ $28,886/yr; E-5 with 6 yrs $4,300/mo ≈ $51,599/yr; O-1 with <2 yrs $4,150/mo ≈ $49,802/yr; O-3 with 6 yrs $8,126/mo ≈ $97,506/yr.

BAH (Housing Allowance)

Tax-free, varies by ZIP, rank, and dependents. 2026 rates effective Jan 1, 2026 — average 4.2% increase over 2025 (example: E-5 with dependents in Norfolk ≈ $2,430/mo). Rate protection applies: if your area's rate drops, you keep your current amount while stationed there.

BAS (Subsistence)

Tax-free monthly food allowance. 2026 rates: enlisted $476.95/mo ($5,723/yr); officers $328.48/mo ($3,942/yr).

BRS Retirement & TSP Match

Blended Retirement System (all members joining 2018+). DoD auto-contributes 1% of base pay to your Thrift Savings Plan (TSP) and matches up to an additional 4% — a 5% guaranteed return. Vest at 2 years, fully portable if you separate before 20.

20-Year Pension (Lifetime)

BRS multiplier: 2.0% × years × average of highest 36 months base pay (paid for life starting at retirement). 20-year E-7 ≈ $25K–$28K/yr; 20-year O-5 ≈ $55K–$65K/yr. Optional lump-sum (25% or 50%) at retirement, plus continued TRICARE.

TRICARE Health Care

$0 premium for active-duty members and their families (TRICARE Prime). Retirees pay modest enrollment fees — 2026 TRICARE Prime: $381.96/yr individual / $765/yr family (Group A); $462.96 / $927 (Group B, joined 2018+). Dental and vision available.

Post-9/11 GI Bill

After 36 months active duty: 100% in-state public tuition + monthly housing stipend (BAH at the school's ZIP) + $1,000/yr book stipend, for 36 months. Transferable to spouse/children after 6 years of service. Yellow Ribbon covers gaps at private/out-of-state schools.

VA Benefits (Lifetime)

Service-connected disability comp is tax-free, monthly, for life — 2026 rates (2.8% COLA, effective Dec 1, 2025): 10% = $180.42/mo, 50% = $1,132.90/mo, 100% = $3,938.58/mo (single, no deps). VA home loan with $0 down/no PMI, VR&E (Chapter 31), VA health care, life insurance (VGLI), and PACT Act expanded toxic-exposure care.

Sources: DoD FY 2026 Military Pay Tables, DTMO 2026 BAH/BAS rates, DFAS BRS, VA.gov 2026 disability rates, VA Education benefits. Bonuses (enlistment, re-enlistment, special-duty, hazardous-duty, language, jump/dive) are MOS- and branch-specific and stack on top of base compensation.

Projected Compensation for This MOS

Estimated total compensation (base pay + BAH + BAS + benefits + bonuses typical for this MOS) at common career milestones. Actual pay depends on rank progression, location, dependents, and bonuses earned.

4 Years

$80K
Salary: $52K
Benefits: $28K

10 Years

$94K
Salary: $61K
Benefits: $33K

20 Years

$112K
Salary: $73K
Benefits: $39K
What This Job Is Worth in the Civilian World

Civilian careers that commonly hire people with deck and operations experience, with national median salaries. Your Mil training, security clearance, and leadership experience often place you above the median.

Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2024 national medians). Click a career to see full details on O*NET OnLine (U.S. Department of Labor). Compare with the Mil compensation above — remember Mil pay includes tax-free housing and food allowances, free healthcare, and a pension.

Categories & Specializations
Environmental Response
Marine Safety
Pollution Investigation
Inspections
STEM