§404.131 When you must have disability insured status.

(a) For a period of disability. To establish a period of disability, you must have disability insured status in the quarter in which you become disabled or in a later quarter in which you are disabled.

(b) For disability insurance benefits. (1) To become entitled to disability insurance benefits, you must have disability insured status in the first full month that you are disabled as described in §404.1501(a), or if later—