ANSWER: Just as the disability need not be total, it also need not last forever. You are entitled to disability retirement if your disabling symptoms are likely to last for at least one year. While no less than one year's duration is sufficient, no more than one year's duration is required.
Example: Barbara's job description required her to travel by airplane, at least one time each month, to the agency's field office. She developed an uncontrollable phobia of flying and could no longer attend the monthly meetings. Accommodation was not possible, such as by conference telephone call, since effective meetings required her physical presence. Barbara's psychiatrist corroborated her claim with a "reasoned medical opinion," which included a prognosis that her symptoms would not abate for at least one year. Barbara is disabled because she is unable to render "useful and efficient service" for at least one year. She is entitled to disability retirement if she meets the other requirements.