| Aspect | Sustainment | Maintenance |
|---|
| Primary Focus | Ensuring operational readiness and long-term support of systems | Performing repairs and upkeep to restore systems to working condition |
| Work Environment | Logistics, supply chain, and support operations | Repair shops, field service, and technical facilities |
| Required Credentials | Certifications in logistics, supply chain, or systems support | Technical certifications, trade licenses, or specialized repair training |
While both roles involve supporting systems, sustainment focuses on maintaining operational readiness over time through logistics and support, whereas maintenance emphasizes repairing and restoring equipment to working condition. Understanding these differences helps clarify career paths and employer expectations in the industry.