Patrick Kapust, the Deputy Director of OSHA’s Directorate of Enforcement Programs, recently presented OSHA’s list of the 10 most frequently cited violations for 2012.
The list is immediately below. There are two links for each standard in the list. The first link will lead to you the standard itself on OSHA's website. The second link will lead to a separate webpage created by Convergence Training that includes helpful information, useful links, and a free, downloadable, interactive glossary of all the terms that OSHA described in that regulation.
For the curious, here's OSHA’s list of the most commonly cited violations of 2011.