Armed with tougher federal mining laws passed in 2006, federal investigators had new powers to crack down on mines with persistent violations.
But mining companies have been able to fend off this tougher regulatory approach by challenging more of the citations filed against them.
As recently as March, for example, federal mine inspectors found dangerous coal dust accumulations during two separate inspections at the Massey Energy Company’s Upper Big Branch mine, the site of an explosion on Monday that killed at least 25 miners.
And throughout last year, the mine, in Montcoal, W.Va., was cited for failing to conduct inspections that would have spotted dangerous piles of coal dust and other unsafe conditions.
Massey appealed at least 37 of the 50 citations for serious safety violations that it received last year.
http://www.nytimes.com/2010/04/07/us/07company.html?th&emc=th