For a member with less than 20 years of service and a combined VA disability rating under 30%, what is their TDRL disposition?

When a member has less than 20 years of service and a combined VA disability rating under 30%, the appropriate disposition is removal from the Temporary Disability Retired List (TDRL) with a return to duty. This is grounded in the principle that the individual does not meet the criteria for a permanent retirement due to insufficient time in service and a low disability rating.

Members placed on TDRL are generally there while their medical evaluation is ongoing to determine the extent of their disabilities. If their disability rating is low, it indicates that they are likely fit for duty and can efficiently perform their military responsibilities.

In cases where the disability rating is below the threshold, the individual's cases are reviewed, and if found sufficiently stable, they can be returned to active duty status. This process reflects the military's aim to ensure that only those who are unable to perform their duties due to medical reasons remain on TDRL, thus allowing the military to maintain operational readiness.

The other options available do not align with the particular circumstances of having a combined VA rating under 30% and less than 20 years of service, as they generally pertain to scenarios involving higher disability ratings or longer service connections.