Army MOS 12N

Horizontal Construction Engineer

Army 12N (Horizontal Construction Engineer) typically involves mechanical systems maintenance, construction and engineering work.

Common Exposures

🔊 Noise
Heavy equipment and power tool noise
💪 Physical Strain
Heavy lifting, repetitive motions
🧪 Chemicals
Concrete dust, paint, solvents, asbestos
🌦️ Environmental
Weather exposure, dust
🔊 Noise
Engine and machinery noise
🧪 Chemicals
Diesel fumes, oil, solvents, hydraulic fluid
🌦️ Environmental
Heat, confined engine spaces

Likely Service-Connected Conditions

Diagnostic Code Condition Likelihood Reasoning
5237 Lumbosacral or cervical strain High Heavy lifting and physical labor
6260 Tinnitus, recurrent High Heavy equipment and power tool noise
5242 Degenerative arthritis, degenerative disc disease other than intervertebral disc syndrome (also, see either DC 5003 or 5010) Medium Repetitive heavy lifting and vibration
5257 Knee, other impairment Medium Kneeling, climbing, physical demands
6847 Sleep Apnea Syndromes Medium Shift work and watch rotations

☢️ PACT Act & Toxic Exposure

Select the era that best matches when you served to see how this job’s toxic exposures changed over time.

PACT Act guide Use exposure finder
Vietnam Era 📅 1962-1975
Agent Orange / Herbicides
PACT Act
Construction and route-clearance work in recently defoliated or treated areas.
Herbicide-Treated Sites
PACT Act
Potential exposure at sites sprayed or handled with herbicides.
Asbestos
Construction, demolition, and renovation work around asbestos-containing materials.
Dust
Concrete, soil, silica, and demolition dust exposure.
Heavy Equipment Exhaust
Diesel exhaust exposure from construction equipment and generators.
Lead Paint
Exposure during scraping, welding, and renovation of older structures.
Cold War Era 📅 1945-1991
Radiation
PACT Act
Possible exposure during nuclear facility construction and support projects.
Asbestos
Construction, demolition, and renovation work around asbestos-containing materials.
Asbestos
High likelihood of asbestos exposure in barracks, ships, utilities, and industrial facilities.
Dust
Concrete, soil, silica, and demolition dust exposure.
Heavy Equipment Exhaust
Diesel exhaust exposure from construction equipment and generators.
Lead Paint
Exposure during scraping, welding, and renovation of older structures.
Lead Paint
Routine work disturbing legacy lead paint coatings.
Gulf War Era 📅 1990-2001
Asbestos
Construction, demolition, and renovation work around asbestos-containing materials.
Dust
Concrete, soil, silica, and demolition dust exposure.
Heavy Equipment Exhaust
Diesel exhaust exposure from construction equipment and generators.
Lead Paint
Exposure during scraping, welding, and renovation of older structures.
Post-9/11 Era 📅 2001-present
Burn Pits
PACT Act
Construction or maintenance of waste pits and burn pit perimeters.
K2 Base Contamination
PACT Act
Soil disturbance and dust exposure at contaminated forward sites such as K2.
PFAS Exposure
PACT Act
Potential contact with PFAS-contaminated soil, runoff, and training areas.
Asbestos
Construction, demolition, and renovation work around asbestos-containing materials.
Dust
Concrete, soil, silica, and demolition dust exposure.
Heavy Equipment Exhaust
Diesel exhaust exposure from construction equipment and generators.
Lead Paint
Exposure during scraping, welding, and renovation of older structures.