In 1988, Congress passed a law providing a way for federal employees to share leave. The intent is that if a federal employee - or a family member - experiences a medical emergency, and as a result misses more work days than are covered by his or her own leave, they can avoid the additional hardship of lost income by using leave hours donated by others. You can learn more about this program at the DOC Human Resources website or the NOAA Workforce Management site.
There are some exceptions to the policy. Although NOAA Corps officers are federal employees, commissioned officer leave is governed by different laws than civilian leave. NOAA Corps officer leave is therefore not included in the leave transfer program.