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 <WSD>scope</WSD> and adequacy of State mine safety laws applicable to such mines and the enforcement of such laws . 
Meaning of the word marked with <WSD> tags:  an area in which something acts or operates or has power or control: "the range of a supersonic jet"