Sentence:  the magnitude of effort and costs of each of these possible phases of an effective safety program for metal and nonmetallic mines ( excluding coal and lignite mines ) ; and the scope and <WSD>adequacy</WSD> of State mine safety laws applicable to such mines and the enforcement of such laws . 
Meaning of the word marked with <WSD> tags:  the quality of being able to meet a need satisfactorily: "he questioned the adequacy of the usual sentimental interpretation of the Golden Rule"