(a) The law defines disability as the inability to do any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months. To meet this definition, you must have a severe impairment(s) that makes you unable to do your past relevant work (see § 404.1560(b)) or any other substantial gainful work that exists in the national economy. If your severe impairment(s) does not meet or medically equal a listing in appendix 1, we will assess your residual functional capacity as provided in §§ 404.1520(e) and 404.1545. (See §§ 404.1520(g)(2) and 404.1562 for an exception to this rule.) We will use this residual functional capacity assessment to determine if you can do your past relevant work. If we find that you cannot do your past relevant work, we will use the same residual functional capacity assessment and your vocational factors of age, education, and work experience to determine if you can do other work. (See § 404.1520(h) for an exception to this rule.) We will use this definition of disability if you are applying for a period of disability, or disability insurance benefits as a disabled worker, or child's insurance benefits based on disability before age 22 or, with respect to disability benefits payable for months after December 1990, as a widow, widower, or surviving divorced spouse.

(b) There are different rules for determining disability for individuals who are statutorily blind. We discuss these in §§ 404.1581 through 404.1587. There are also different rules for determining disability for widows, widowers, and surviving divorced spouses for monthly benefits for months prior to January 1991. We discuss these rules in §§ 404.1577, 404.1578, and 404.1579.

(a) Permanent exclusion of felony-related impairment. In determining whether you are under a disability, we will not consider any physical or mental impairment, or any increase in severity (aggravation) of a preexisting impairment, which arises in connection with your commission of a felony after October 19, 1980, if you are subsequently convicted of this crime. Your subsequent conviction will invalidate any prior determination establishing disability if that determination was based upon any impairment, or aggravation, which we must exclude under this rule.

(b) Limited use of impairment arising in prison. In determining whether you are under a disability for purposes of benefit payments, we will not consider any physical or mental impairment, or any increase in severity (aggravation) of a preexisting impairment, which arises in connection with your confinement in a jail, prison, or other penal institution or correctional facility for conviction of a felony committed after October 19, 1980. The exclusion of the impairment, or aggravation, applies in determining disability for benefits payable for any month during which you are confined. This rule does not preclude the establishment of a period of disability based upon the impairment or aggravation. You may become entitled to benefits upon release from prison provided that you apply and are under a disability at the time.

(c) Felonious offenses. We will consider an offense a felony if—

(d) Confinement. In general, a jail, prison, or other penal institution or correctional facility is a facility which is under the control and jurisdiction of the agency in charge of the penal system or in which convicted criminals can be incarcerated. Confinement in such a facility continues as long as you are under a sentence of confinement and have not been released due to parole or pardon. You are considered confined even though you are temporarily or intermittently outside of the facility (e.g., on work release, attending school, or hospitalized).

(a) Involves doing significant and productive physical or mental duties; and

(b) Is done (or intended) for pay or profit.

(a) Disabled workers, persons disabled since childhood and, for months after December 1990, disabled widows, widowers, and surviving divorced spouses. If you are entitled to disability cash benefits as a disabled worker, or to child's insurance benefits, or, for monthly benefits payable after December 1990, to widow's, widower's, or surviving divorced spouse's monthly benefits, a disabling impairment is an impairment (or combination of impairments) which, of itself, is so severe that it meets or equals a set of criteria in the Listing of Impairments in appendix 1 of this subpart or which, when considered with your age, education, and work experience, would result in a finding that you are disabled under § 404.1594. In determining whether you have a disabling impairment, earnings are not considered.

(b) Disabled widows, widowers, and surviving divorced spouses, for monthly benefits for months prior to January 1991. If you have been entitled to disability benefits as a disabled widow, widower, or surviving divorced spouse and we must decide whether you had a disabling impairment for any time prior to January 1991, a disabling impairment is an impairment (or combination of impairments) which, of itself, was so severe that it met or equaled a set of criteria in the Listing of Impairments in appendix 1 of this subpart, or results in a finding that you were disabled under § 404.1579. In determining whether you had a disabling impairment, earnings are not considered.