The Railroad Retirement Act of 1974, referred to in subsec. (a–1)(ii), is act Aug. 29, 1935, ch. 812, as amended generally by Pub. L. 93–445, title I, § 101, Oct. 16, 1974, 88 Stat. 1305, which is classified generally to subchapter IV (§ 231 et seq.) of chapter 9 of this title. For further details and complete classification of this Act to the Code, see Codification note set out preceding section 231 of this title, section 231t of this title, and Tables.

The Social Security Act, referred to in subsec. (a–1)(ii), is act Aug. 14, 1935, ch. 531, 49 Stat. 620. Title II of the Social Security Act is classified generally to subchapter II (§ 401 et seq.) of chapter 7 of Title 42, The Public Health and Welfare. For complete classification of this Act to the Code, see section 1305 of Title 42 and Tables.

This chapter, referred to in subsecs. (a–1)(ii), (a–2)(i)(B), and (c), was in the original “this Act”, meaning act June 25, 1938, ch. 680, 52 Stat. 1094, which enacted this chapter and amended sections 503 and 1104 and former section 1107 of Title 42, The Public Health and Welfare. For complete classification of this Act to the Code, see section 367 of this title and Tables.

The Railway Labor Act, referred to in subsecs. (a–2)(iii) and (c)(v), is act May 20, 1926, ch. 347, 44 Stat. 577, which is classified principally to chapter 8 (§ 151 et seq.) of this title. For complete classification of this Act to the Code, see section 151 of this title and Tables.

1988—Subsec. (a–2)(i)(A). Pub. L. 100–647 inserted “and before 1989 or, if any part of such compensation is paid in a calendar year after 1988, not less than an amount that is equal to 2.5 times the monthly compensation base for months in such calendar year, as computed under section 351(i) of this title” after “such period”.

1983—Subsec. (a–2)(i)(A). Pub. L. 98–76 substituted “$1,500” for “$1,000”.

1974—Subsec. (a–1)(ii). Pub. L. 93–445 substituted “annuity payments under the Railroad Retirement Act of 1974” for “annuity payments or pensions under the Railroad Retirement Act of 1935 or the Railroad Retirement Act of 1937”.

1968—Subsec. (a–1)(iii). Pub. L. 90–257, § 204(a), added cl. (iii).

Subsec. (a–2)(i)(A). Pub. L. 90–257, § 204(b), substituted “$1,000” for “$750”.

1963—Subsec. (a–2)(i). Pub. L. 88–133 substituted cl. (i) providing in subd. (A) that an employee who voluntarily leaves his work shall not be considered as having days of unemployment for a period beginning with the day he so leaves and continuing until he has been paid compensation of not less than $750 with respect to time after the beginning of such period and subd. (B) that if the Board finds that the employee left work voluntarily with good cause, such disqualification shall not apply, except that in such case the employee would not be considered as having days of unemployment with respect to any day in a registration period if such period includes a day which is in a period for which he could receive benefits under an unemployment law other than this chapter and he so certifies, for former cl. (i) providing that an employee who leaves work voluntarily is not considered as having days of unemployment with respect to any of the first 30 days after he so leaves if the Board finds that he left work voluntarily without good cause.

1959—Subsec. (a–2)(iv). Pub. L. 86–28 struck out cl. (iv) which prevented Sundays and holidays from being considered as days of unemployment unless they were preceded and succeeded by a day of unemployment.

1958—Subsec. (a–1)(ii). Pub. L. 85–927 substituted “other than this chapter or any other social-insurance payments under any law” for “of any State of the United States other than this chapter, or any other social-insurance payments under a law of any State or of the United States”.

1951—Subsec. (a–1). Act Oct. 30, 1951, struck out cls. (iii) and (iv) which excepted from consideration as a day of unemployment or as a day of sickness, any days in any registration period in which the employee had certain specified earnings.

1946—Subsec. (a–1). Act July 31, 1946, § 309(a), (b), designated provisions of former subsec. (a) which apply both to days of unemployment and to days of sickness as subsec. (a–1) and changed cl. (ii) to include sickness and maternity benefits.

Subsec. (a–2). Act July 31, 1946, § 309(c), designated provisions of former subsec. (a) which apply only to days of unemployment as subsec. (a–2).

Subsecs. (b) to (e). Act July 31, 1946, § 310, changed references to subsec. (a) of this section to refer to subsec. (a–2).

1940—Subsec. (a)(ii). Act Oct. 10, 1940, § 14, inserted provisions relating to employee’s failure to comply with instructions of the Board.

Subsec. (a)(iv). Act Oct. 10, 1940, § 15, substituted “registration period” for “half-month”.

Subsec. (a)(v). Act Oct. 10, 1940, § 16, struck out applicability to employee having a right to receive compensation or other wages in lieu of notice, and inserted provisions relating to recovery of certain other payments and inapplicability of paragraph under specified conditions.

Subsec. (a)(vi). Act Oct. 10, 1940, § 17, substituted provisions relating to earnings of employees during any day in any registration period, for provisions relating to earnings of employees during any day in any half-month.

Subsec. (a)(vii), (viii). Act Oct. 10, 1940, § 18, added cls. (vii) and (viii).

1939—Subsec. (a). Act June 20, 1939, generally revised criteria for determining what shall not be considered as a day of unemployment with respect to any employee.

Subsec. (b). Act June 20, 1939, substituted provisions setting forth criteria for determining nonapplicability of disqualification provided in subsec. (a)(iii) of this section, for provisions setting forth criteria for determining nonapplicability of disqualification provided in subsec. (a)(v) of this section.

Subsecs. (c) to (e). Act June 20, 1939, substituted references to subsec. (a)(ii) of this section for references to subsec. (a)(iii) or (iv) of this section.

Amendment by Pub. L. 98–76 applicable to compensation paid for services rendered after Dec. 31, 1983, see section 411(b) of Pub. L. 98–76, set out as a note under section 351 of this title.

Amendment by Pub. L. 93–445 effective Jan. 1, 1975, see section 603 of Pub. L. 93–445, set out as a note under section 402 of Title 42, The Public Health and Welfare.

Amendment by section 204(a) of Pub. L. 90–257 effective with respect to calendar days in benefit years beginning after June 30, 1968, and amendment by section 204(b) of Pub. L. 90–257 effective with respect to voluntary leaving of work (within the meaning of subsec. (a–2)(i) this section) after February 15, 1968, see section 208 of Pub. L. 90–257, set out as a note under section 352 of this title.

Pub. L. 88–133, title III, § 302(b), Oct. 5, 1963, 77 Stat. 222, provided that: “The amendment made by subsection (a) [amending this section] shall be effective only with respect to an employee who leaves work voluntarily after the date of enactment of this Act [Oct. 5, 1963].”

Amendment by Pub. L. 86–28 effective with respect to benefits accruing in general benefit years which begin after the benefit year ending June 30, 1958, and in extended benefit periods which begin after Dec. 31, 1957, see section 309 of Pub. L. 86–28, set out as a note under section 351 of this title.

Amendment by Pub. L. 85–927 effective with respect to days in benefit years after the benefit year ending on June 30, 1958, see section 207(a) of Pub. L. 85–927, set out as a note under section 351 of this title.

Amendment by act Oct. 30, 1951, effective with respect to registration periods beginning on and after Jan. 1, 1952, see section 28 of act Oct. 30, 1951, set out as a note under section 351 of this title.

Amendment by act July 31, 1946, effective July 1, 1947, see section 403 of act July 31, 1946, set out as a note under section 352 of this title.

For effective date of amendment by act Oct. 10, 1940, see section 1 of act Oct. 10, 1940, set out as a note under section 351 of this title.