((a)) ** Disability insurance benefits**

((1)) Every individual who—

((A)) is insured for disability insurance benefits (as determined under subsection (c)(1)),

((B)) has not attained retirement age (as defined in section 416() of this title),

((C)) if not a United States citizen or national—

((i)) has been assigned a social security account number that was, at the time of assignment, or at any later time, consistent with the requirements of subclause (I) or (III) of ; or

((ii)) at the time any quarters of coverage are earned—

((I)) is described in subparagraph (B) or (D) of ,

((II)) is lawfully admitted temporarily to the United States for business (in the case of an individual described in such subparagraph (B)) or the performance as a crewman (in the case of an individual described in such subparagraph (D)), and

((III)) the business engaged in or service as a crewman performed is within the scope of the terms of such individual’s admission to the United States.

((D)) has filed application for disability insurance benefits, and

((E)) is under a disability (as defined in subsection (d))

((2)) Except as provided in and , such individual’s disability insurance benefit for any month shall be equal to his primary insurance amount for such month determined under as though he had attained age 62 in—

((A)) the first month of his waiting period, or

((B)) in any case in which clause (ii) of paragraph (1) of this subsection is applicable, the first month for which he becomes entitled to such disability insurance benefits,

((b)) ** Filing application** An application for disability insurance benefits filed before the first month in which the applicant satisfies the requirements for such benefits (as prescribed in subsection (a)(1)) shall be deemed a valid application (and shall be deemed to have been filed in such first month) only if the applicant satisfies the requirements for such benefits before the Commissioner of Social Security makes a final decision on the application and no request under for notice and opportunity for a hearing thereon is made, or if such a request is made, before a decision based upon the evidence adduced at the hearing is made (regardless of whether such decision becomes the final decision of the Commissioner of Social Security). An individual who would have been entitled to a disability insurance benefit for any month had he filed application therefor before the end of such month shall be entitled to such benefit for such month if such application is filed before the end of the 12th month immediately succeeding such month.section 405(b) of this title

((c)) ** Definitions; insured status; waiting period** For purposes of this section—

((1)) An individual shall be insured for disability insurance benefits in any month if—

((A)) he would have been a fully insured individual (as defined in ) had he attained age 62 and filed application for benefits under on the first day of such month, and

((B))

((i)) he had not less than 20 quarters of coverage during the 40-quarter period which ends with the quarter in which such month occurred, or

((ii)) if such month ends before the quarter in which he attains (or would attain) age 31, not less than one-half (and not less than 6) of the quarters during the period ending with the quarter in which such month occurred and beginning after he attained the age of 21 were quarters of coverage, or (if the number of quarters in such period is less than 12) not less than 6 of the quarters in the 12-quarter period ending with such quarter were quarters of coverage, or

((iii)) in the case of an individual (not otherwise insured under clause (i)) who, by reason of , had a prior period of disability that began during a period before the quarter in which he or she attained age 31, not less than one-half of the quarters beginning after such individual attained age 21 and ending with the quarter in which such month occurs are quarters of coverage, or (if the number of quarters in such period is less than 12) not less than 6 of the quarters in the 12-quarter period ending with such quarter are quarters of coverage;

((2)) The term “waiting period” means, in the case of any application for disability insurance benefits, the earliest period of five consecutive calendar months—

((A)) throughout which the individual with respect to whom such application is filed has been under a disability, and

((B))

((i)) which begins not earlier than with the first day of the seventeenth month before the month in which such application is filed if such individual is insured for disability insurance benefits in such seventeenth month, or (ii) if he is not so insured in such month, which begins not earlier than with the first day of the first month after such seventeenth month in which he is so insured.

((d)) ** “Disability” defined**

((1)) The term “disability” means—

((A)) inability to engage in 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; or

((B)) in the case of an individual who has attained the age of 55 and is blind (within the meaning of “blindness” as defined in ), inability by reason of such blindness to engage in substantial gainful activity requiring skills or abilities comparable to those of any gainful activity in which he has previously engaged with some regularity and over a substantial period of time.

((2)) For purposes of paragraph (1)(A)—

((A)) An individual shall be determined to be under a disability only if his physical or mental impairment or impairments are of such severity that he is not only unable to do his previous work but cannot, considering his age, education, and work experience, engage in any other kind of substantial gainful work which exists in the national economy, regardless of whether such work exists in the immediate area in which he lives, or whether a specific job vacancy exists for him, or whether he would be hired if he applied for work. For purposes of the preceding sentence (with respect to any individual), “work which exists in the national economy” means work which exists in significant numbers either in the region where such individual lives or in several regions of the country.

((B)) In determining whether an individual’s physical or mental impairment or impairments are of a sufficient medical severity that such impairment or impairments could be the basis of eligibility under this section, the Commissioner of Social Security shall consider the combined effect of all of the individual’s impairments without regard to whether any such impairment, if considered separately, would be of such severity. If the Commissioner of Social Security does find a medically severe combination of impairments, the combined impact of the impairments shall be considered throughout the disability determination process.

((C)) An individual shall not be considered to be disabled for purposes of this subchapter if alcoholism or drug addiction would (but for this subparagraph) be a contributing factor material to the Commissioner’s determination that the individual is disabled.

((3)) For purposes of this subsection, a “physical or mental impairment” is an impairment that results from anatomical, physiological, or psychological abnormalities which are demonstrable by medically acceptable clinical and laboratory diagnostic techniques.

((4))

((A)) The Commissioner of Social Security shall by regulations prescribe the criteria for determining when services performed or earnings derived from services demonstrate an individual’s ability to engage in substantial gainful activity. No individual who is blind shall be regarded as having demonstrated an ability to engage in substantial gainful activity on the basis of earnings that do not exceed an amount equal to the exempt amount which would be applicable under , to individuals described in subparagraph (D) thereof, if section 102 of the Senior Citizens’ Right to Work Act of 1996 had not been enacted. Notwithstanding the provisions of paragraph (2), an individual whose services or earnings meet such criteria shall, except for purposes of , be found not to be disabled. In determining whether an individual is able to engage in substantial gainful activity by reason of his earnings, where his disability is sufficiently severe to result in a functional limitation requiring assistance in order for him to work, there shall be excluded from such earnings an amount equal to the cost (to such individual) of any attendant care services, medical devices, equipment, prostheses, and similar items and services (not including routine drugs or routine medical services unless such drugs or services are necessary for the control of the disabling condition) which are necessary (as determined by the Commissioner of Social Security in regulations) for that purpose, whether or not such assistance is also needed to enable him to carry out his normal daily functions; except that the amounts to be excluded shall be subject to such reasonable limits as the Commissioner of Social Security may prescribe.

((B)) In determining under subparagraph (A) when services performed or earnings derived from services demonstrate an individual’s ability to engage in substantial gainful activity, the Commissioner of Social Security shall apply the criteria described in subparagraph (A) with respect to services performed by any individual without regard to the legality of such services.

((C))

((i)) Subject to clause (ii), in determining when earnings derived from services demonstrate an individual’s ability to engage in substantial gainful activity, such earnings shall be presumed to have been earned—

((I)) in making a determination of initial entitlement on the basis of disability, in the month in which the services were performed from which such earnings were derived; and

((II)) in any other case, in the month in which such earnings were paid.

((ii)) A presumption made under clause (i) shall not apply to a determination described in such clause if—

((I)) the Commissioner can reasonably establish, based on evidence readily available at the time of such determination, that the earnings were earned in a different month than when paid; or

((II)) in any case in which there is a determination that no benefit is payable due to earnings, after the individual is notified of the presumption made and provided with an opportunity to submit additional information along with an explanation of what additional information is needed, the individual shows to the satisfaction of the Commissioner that such earnings were earned in another month.

((5))

((A)) An individual shall not be considered to be under a disability unless he furnishes such medical and other evidence of the existence thereof as the Commissioner of Social Security may require. An individual’s statement as to pain or other symptoms shall not alone be conclusive evidence of disability as defined in this section; there must be medical signs and findings, established by medically acceptable clinical or laboratory diagnostic techniques, which show the existence of a medical impairment that results from anatomical, physiological, or psychological abnormalities which could reasonably be expected to produce the pain or other symptoms alleged and which, when considered with all evidence required to be furnished under this paragraph (including statements of the individual or his physician as to the intensity and persistence of such pain or other symptoms which may reasonably be accepted as consistent with the medical signs and findings), would lead to a conclusion that the individual is under a disability. Objective medical evidence of pain or other symptoms established by medically acceptable clinical or laboratory techniques (for example, deteriorating nerve or muscle tissue) must be considered in reaching a conclusion as to whether the individual is under a disability. Any non-Federal hospital, clinic, laboratory, or other provider of medical services, or physician not in the employ of the Federal Government, which supplies medical evidence required and requested by the Commissioner of Social Security under this paragraph shall be entitled to payment from the Commissioner of Social Security for the reasonable cost of providing such evidence.

((B)) In making any determination with respect to whether an individual is under a disability or continues to be under a disability, the Commissioner of Social Security shall consider all evidence available in such individual’s case record, and shall develop a complete medical history of at least the preceding twelve months for any case in which a determination is made that the individual is not under a disability. In making any determination the Commissioner of Social Security shall make every reasonable effort to obtain from the individual’s treating physician (or other treating health care provider) all medical evidence, including diagnostic tests, necessary in order to properly make such determination, prior to evaluating medical evidence obtained from any other source on a consultative basis.

((C))

((i)) In making any determination with respect to whether an individual is under a disability or continues to be under a disability, the Commissioner of Social Security may not consider (except for good cause as determined by the Commissioner) any evidence furnished by—

((I)) any individual or entity who has been convicted of a felony under or under ;

((II)) any individual or entity who has been excluded from participation in any Federal health care program under ; or

((III)) any person with respect to whom a civil money penalty or assessment has been imposed under for the submission of false evidence.

((ii)) To the extent and at such times as is necessary for the effective implementation of clause (i) of this subparagraph—

((I)) the Inspector General of the Social Security Administration shall transmit to the Commissioner information relating to persons described in subclause (I) or (III) of clause (i);

((II)) the Secretary of Health and Human Services shall transmit to the Commissioner information relating to persons described in subclause (II) of clause (i); and

((6))

((A)) Notwithstanding any other provision of this subchapter, any physical or mental impairment which arises in connection with the commission by an individual (after ) of an offense which constitutes a felony under applicable law and for which such individual is subsequently convicted, or which is aggravated in connection with such an offense (but only to the extent so aggravated), shall not be considered in determining whether an individual is under a disability.

((B)) Notwithstanding any other provision of this subchapter, any physical or mental impairment which arises in connection with an individual’s confinement in a jail, prison, or other penal institution or correctional facility pursuant to such individual’s conviction of an offense (committed after ) constituting a felony under applicable law, or which is aggravated in connection with such a confinement (but only to the extent so aggravated), shall not be considered in determining whether such individual is under a disability for purposes of benefits payable for any month during which such individual is so confined.

((e)) ** Engaging in substantial gainful activity**

((1)) No benefit shall be payable under subsection (d)(1)(B)(ii), (d)(6)(A)(ii), (d)(6)(B), (e)(1)(B)(ii), or (f)(1)(B)(ii) of or under subsection (a)(1) of this section to an individual for any month, after the third month, in which he engages in substantial gainful activity during the 36-month period following the end of his trial work period determined by application of .

((2)) No benefit shall be payable under on the basis of the wages and self-employment income of an individual entitled to a benefit under subsection (a)(1) of this section for any month for which the benefit of such individual under subsection (a)(1) is not payable under paragraph (1).

((f)) ** Standard of review for termination of disability benefits** A recipient of benefits under this subchapter or subchapter XVIII based on the disability of any individual may be determined not to be entitled to such benefits on the basis of a finding that the physical or mental impairment on the basis of which such benefits are provided has ceased, does not exist, or is not disabling only if such finding is supported by—

((1)) substantial evidence which demonstrates that—

((A)) there has been any medical improvement in the individual’s impairment or combination of impairments (other than medical improvement which is not related to the individual’s ability to work), and

((B)) the individual is now able to engage in substantial gainful activity; or

((2)) substantial evidence which—

((A)) consists of new medical evidence and a new assessment of the individual’s residual functional capacity, and demonstrates that—

((i)) although the individual has not improved medically, he or she is nonetheless a beneficiary of advances in medical or vocational therapy or technology (related to the individual’s ability to work), and

((ii)) the individual is now able to engage in substantial gainful activity, or

((B)) demonstrates that—

((i)) although the individual has not improved medically, he or she has undergone vocational therapy (related to the individual’s ability to work), and

((ii)) the individual is now able to engage in substantial gainful activity; or

((3)) substantial evidence which demonstrates that, as determined on the basis of new or improved diagnostic techniques or evaluations, the individual’s impairment or combination of impairments is not as disabling as it was considered to be at the time of the most recent prior decision that he or she was under a disability or continued to be under a disability, and that therefore the individual is able to engage in substantial gainful activity; or

((4)) substantial evidence (which may be evidence on the record at the time any prior determination of the entitlement to benefits based on disability was made, or newly obtained evidence which relates to that determination) which demonstrates that a prior determination was in error.

((g)) ** Continued payment of disability benefits during appeal**

((1)) In any case where—

((A)) an individual is a recipient of disability insurance benefits, or of child’s, widow’s, or widower’s insurance benefits based on disability,

((B)) the physical or mental impairment on the basis of which such benefits are payable is found to have ceased, not to have existed, or to no longer be disabling, and as a consequence such individual is determined not to be entitled to such benefits, and

((C)) a timely request for a hearing under , or for an administrative review prior to such hearing, is pending with respect to the determination that he is not so entitled,

((2))

((A)) If an individual elects to have the payment of his benefits continued for an additional period under paragraph (1), and the final decision of the Commissioner of Social Security affirms the determination that he is not entitled to such benefits, any benefits paid under this subchapter pursuant to such election (for months in such additional period) shall be considered overpayments for all purposes of this subchapter, except as otherwise provided in subparagraph (B).

((B)) If the Commissioner of Social Security determines that the individual’s appeal of his termination of benefits was made in good faith, all of the benefits paid pursuant to such individual’s election under paragraph (1) shall be subject to waiver consideration under the provisions of . In making for purposes of this subparagraph any determination of whether any individual’s appeal is made in good faith, the Commissioner of Social Security shall specifically take into account any physical, mental, educational, or linguistic limitation such individual may have (including any lack of facility with the English language).

((h)) ** Interim benefits in cases of delayed final decisions**

((1)) In any case in which an administrative law judge has determined after a hearing as provided under that an individual is entitled to disability insurance benefits or child’s, widow’s, or widower’s insurance benefits based on disability and the Commissioner of Social Security has not issued the Commissioner’s final decision in such case within 110 days after the date of the administrative law judge’s determination, such benefits shall be currently paid for the months during the period beginning with the month preceding the month in which such 110-day period expires and ending with the month preceding the month in which such final decision is issued.

((2)) For purposes of paragraph (1), in determining whether the 110-day period referred to in paragraph (1) has elapsed, any period of time for which the action or inaction of such individual or such individual’s representative without good cause results in the delay in the issuance of the Commissioner’s final decision shall not be taken into account to the extent that such period of time exceeds 20 calendar days.

((3)) Any benefits currently paid under this subchapter pursuant to this subsection (for the months described in paragraph (1)) shall not be considered overpayments for any purpose of this subchapter (unless payment of such benefits was fraudulently obtained), and such benefits shall not be treated as past-due benefits for purposes of .

((i)) ** Reinstatement of entitlement**

((1))

((A)) Entitlement to benefits described in subparagraph (B)(i)(I) shall be reinstated in any case where the Commissioner determines that an individual described in subparagraph (B) has filed a request for reinstatement meeting the requirements of paragraph (2)(A) during the period prescribed in subparagraph (C). Reinstatement of such entitlement shall be in accordance with the terms of this subsection.

((B)) An individual is described in this subparagraph if—

((i)) prior to the month in which the individual files a request for reinstatement—

((I)) the individual was entitled to benefits under this section or on the basis of disability pursuant to an application filed therefor; and

((II)) such entitlement terminated due to the performance of substantial gainful activity;

((ii)) the individual is under a disability and the physical or mental impairment that is the basis for the finding of disability is the same as (or related to) the physical or mental impairment that was the basis for the finding of disability that gave rise to the entitlement described in clause (i); and

((iii)) the individual’s disability renders the individual unable to perform substantial gainful activity.

((C))

((i)) Except as provided in clause (ii), the period prescribed in this subparagraph with respect to an individual is 60 consecutive months beginning with the month following the most recent month for which the individual was entitled to a benefit described in subparagraph (B)(i)(I) prior to the entitlement termination described in subparagraph (B)(i)(II).

((ii)) In the case of an individual who fails to file a reinstatement request within the period prescribed in clause (i), the Commissioner may extend the period if the Commissioner determines that the individual had good cause for the failure to so file.

((2))

((A))

((i)) A request for reinstatement shall be filed in such form, and containing such information, as the Commissioner may prescribe.

((ii)) A request for reinstatement shall include express declarations by the individual that the individual meets the requirements specified in clauses (ii) and (iii) of paragraph (1)(B).

((B)) A request for reinstatement filed in accordance with subparagraph (A) may constitute an application for benefits in the case of any individual who the Commissioner determines is not entitled to reinstated benefits under this subsection.

((3)) In determining whether an individual meets the requirements of paragraph (1)(B)(ii), the provisions of subsection (f) shall apply.

((4))

((A))

((i)) Subject to clause (ii), entitlement to benefits reinstated under this subsection shall commence with the benefit payable for the month in which a request for reinstatement is filed.

((ii)) An individual whose entitlement to a benefit for any month would have been reinstated under this subsection had the individual filed a request for reinstatement before the end of such month shall be entitled to such benefit for such month if such request for reinstatement is filed before the end of the twelfth month immediately succeeding such month.

((B))

((i)) Subject to clauses (ii) and (iii), the amount of the benefit payable for any month pursuant to the reinstatement of entitlement under this subsection shall be determined in accordance with the provisions of this subchapter.

((ii)) For purposes of computing the primary insurance amount of an individual whose entitlement to benefits under this section is reinstated under this subsection, the date of onset of the individual’s disability shall be the date of onset used in determining the individual’s most recent period of disability arising in connection with such benefits payable on the basis of an application.

((iii)) Benefits under this section or payable for any month pursuant to a request for reinstatement filed in accordance with paragraph (2) shall be reduced by the amount of any provisional benefit paid to such individual for such month under paragraph (7).

((C)) No benefit shall be payable pursuant to an entitlement reinstated under this subsection to an individual for any month in which the individual engages in substantial gainful activity.

((D)) The entitlement of any individual that is reinstated under this subsection shall end with the benefits payable for the month preceding whichever of the following months is the earliest:

((i)) The month in which the individual dies.

((ii)) The month in which the individual attains retirement age.

((iii)) The third month following the month in which the individual’s disability ceases.

((5)) Whenever an individual’s entitlement to benefits under this section is reinstated under this subsection, entitlement to benefits payable on the basis of such individual’s wages and self-employment income may be reinstated with respect to any person previously entitled to such benefits on the basis of an application if the Commissioner determines that such person satisfies all the requirements for entitlement to such benefits except requirements related to the filing of an application. The provisions of paragraph (4) shall apply to the reinstated entitlement of any such person to the same extent that they apply to the reinstated entitlement of such individual.

((6)) An individual to whom benefits are payable under this section or pursuant to a reinstatement of entitlement under this subsection for 24 months (whether or not consecutive) shall, with respect to benefits so payable after such twenty-fourth month, be deemed for purposes of paragraph (1)(B)(i)(I) and the determination, if appropriate, of the termination month in accordance with subsection (a)(1) of this section, or subsection (d)(1), (e)(1), or (f)(1) of , to be entitled to such benefits on the basis of an application filed therefor.

((7))

((A)) An individual described in paragraph (1)(B) who files a request for reinstatement in accordance with the provisions of paragraph (2)(A) shall be entitled to provisional benefits payable in accordance with this paragraph, unless the Commissioner determines that the individual does not meet the requirements of paragraph (1)(B)(i) or that the individual’s declaration under paragraph (2)(A)(ii) is false. Any such determination by the Commissioner shall be final and not subject to review under subsection (b) or (g) of .

((B)) The amount of a provisional benefit for a month shall equal the amount of the last monthly benefit payable to the individual under this subchapter on the basis of an application increased by an amount equal to the amount, if any, by which such last monthly benefit would have been increased as a result of the operation of .

((C))

((i)) Provisional benefits shall begin with the month in which a request for reinstatement is filed in accordance with paragraph (2)(A).

((ii)) Provisional benefits shall end with the earliest of—

((I)) the month in which the Commissioner makes a determination regarding the individual’s entitlement to reinstated benefits;

((II)) the fifth month following the month described in clause (i);

((III)) the month in which the individual performs substantial gainful activity; or

((IV)) the month in which the Commissioner determines that the individual does not meet the requirements of paragraph (1)(B)(i) or that the individual’s declaration made in accordance with paragraph (2)(A)(ii) is false.

((D)) In any case in which the Commissioner determines that an individual is not entitled to reinstated benefits, any provisional benefits paid to the individual under this paragraph shall not be subject to recovery as an overpayment unless the Commissioner determines that the individual knew or should have known that the individual did not meet the requirements of paragraph (1)(B).

((j)) ** Limitation on payments to prisoners** For provisions relating to limitation on payments to prisoners, see .section 402(x) of this title