. NEW CHANGES TO 30 C.F.R 100.3(C): WEAKNESSES AND SUGGESTED IMPROVEMENTS IN THE ASSESSMENT OF A MINE OPERATOR’S HISTORY OF VIOLATIONS. Utah Environmental Law Review, [S.l.], v. 28, n. 2, mar. 2009. Available at: <http://epubs.utah.edu/index.php/jlrel/article/view/112>. Date accessed: 20 may 2019.