**UNITED STATES NAVY: Prepare for Advancement to Non-Commissioned Officer (NCO) Early—Start as a Seaman Recruit**
### 1. Advancement to Petty Officer
Advancement to Petty Officer is a privilege, not a guarantee. Typically, sailors are eligible for promotion to Petty Officer Third Class (E-4) when they have:
- 24 months of total service; up to 18 months may be waived.
- 6 months in current paygrade; up to 3 months may be waived.
- The