Section 701.101 - Scope of this subchapter and subchapter B(a) This subchapter contains the regulations governing the administration of the Longshore and Harbor Workers' Compensation Act, as amended (LHWCA), 33 U.S.C. 901 et seq., except activities, pursuant to 33 U.S.C. 941 , assigned to the Assistant Secretary of Labor for Occupational Safety and Health. It also contains the regulations governing the administration of the direct extensions of the LHWCA: the Defense Base Act (DBA), 42 U.S.C. 1651 et seq.; the Outer Continental Shelf Lands Act (OCSLA), 43 U.S.C. 1331 ; and the Nonappropriated Fund Instrumentalities Act (NFIA), 5 U.S.C. 8171 et seq.(b) The regulations in this subchapter also apply to claims filed under the District of Columbia Workmen's Compensation Act (DCCA), 36 D.C. Code 501 et seq. That law applies to all claims for injuries or deaths based on employment events that occurred prior to July 26, 1982, the effective date of the District of Columbia Workers' Compensation Act, as amended (D.C. Code 32-1501 et seq.).(c) The regulations governing the administration of the Black Lung Benefits Program are in subchapter B of this chapter. 70 FR 43232 , July 26, 2005