Sentence:  Under P. L. 113 , 78 th Congress , the Federal Government <WSD>assumed</WSD> responsibility for 100 % of necessary State expenditures in connection with administration and the counseling and placement of the disabled , and for 50 % of the necessary costs of providing clients with rehabilitation case services . 
Meaning of the word marked with <WSD> tags:  take on titles, offices, duties, responsibilities