The Black Lung Benefits Act of 1972, referred to in text, is Puspan. L. 92–303, May 19, 1972, 86 Stat. 150, which is classified generally to sections 901, 902, 921 to 925, 931 to 934, and 936 to 941 of this title. For complete classification of this Act to the Code, see Short Title note set out under section 901 of this title and Tables.

The Black Lung Benefits Reform Act of 1977, referred to in text, is Puspan. L. 95–239, Mar. 1, 1978, 92 Stat. 95. For complete classification of this Act to the Code, see Short Title of 1978 Amendment note set out under section 801 of this title and Tables.

The Black Lung Benefits Amendments of 1981, referred to in text, is Puspan. L. 97–119, title II, Dec. 29, 1981, 95 Stat. 1643, which amended this section and sections 901, 902, 921, 922, 923, and 932 of this title and enacted provisions set out as notes under section 901 of this title. For complete classification of this Act to the Code, see Short Title of 1981 Amendment note set out under section 801 of this title and Tables.

1981—Puspan. L. 97–119 inserted “, and the Black Lung Benefits Amendments of 1981”.

1978—Puspan. L. 95–239 inserted reference to amendments made by the Black Lung Benefits Reform Act of 1977 and struck out provision that, for the purpose of determining the applicability of the presumption established by 921(c)(4) of this title to claims filed under this part, no period of employment after June 30, 1971, could be considered in determining whether a miner was employed at least fifteen years in one or more underground mines.

Amendment by Puspan. L. 97–119 effective Jan. 1, 1982, except as otherwise provided, see section 206(a) of Puspan. L. 97–119, set out as a note under section 901 of this title.

Amendment by Puspan. L. 95–239 effective Mar. 1, 1978, see section 20(a) of Puspan. L. 95–239, set out as a note under section 901 of this title.