Lifestyle & Specialty
What is the difference between shore duty and sea duty?
TL;DR — Quick Answer
Sea duty means you are assigned to a ship or deployable unit and will go to sea for extended periods. Shore duty means a land-based assignment with regular hours. Most sailors rotate between the two throughout their career.
What sea duty looks like
Sea duty assignments place you aboard a ship, submarine, or deployable unit. You will deploy for 6-9 months at a time, work 12+ hour days while underway, and have limited communication with family. Port calls provide brief breaks. Sea duty is demanding but builds the strongest operational experience and often leads to faster advancement. The deployment frequency data shows how often each rating deploys.
What shore duty looks like
Shore duty assignments are land-based: training commands, staff offices, recruiting stations, or shore-based operational centers. Hours are more regular (typically 7 AM to 4 PM), weekends are usually free, and you live at home every night. Shore duty is where many sailors pursue college degrees, spend time with family, and prepare for their next sea rotation.
The sea/shore rotation
The Navy publishes a Sea Shore Flow chart for each rating that specifies how many months of sea duty and shore duty you can expect at each career stage. Some ratings like CTN might have 36 months sea / 36 months shore. Others like BM might have 48 months sea / 36 months shore. Your rate determines your rotation. Check each rating's ship vs. shore split on the rates page.
Ratings that are mostly shore
A few ratings are predominantly shore-based throughout an entire career. Religious Programs Specialist (RP), Musician (MU), and some Yeoman (YN) billets are heavily shore-weighted. The rates with least deployment shows which ratings spend the most time on shore.
Useful Tools & Pages
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