Will Kramer has written an excellent article on why you should challenge OSHA citations.
Based on an analysis of the more than 57,000 citations listed in OSHA’s public inspection databases in 2012, employers achieved an average penalty reduction of 49% by negotiating their citations with OSHA at informal conferences. Of the 33,765 citations of this type, 7% were deleted entirely. This is a victory as the complete elimination of a citation is typically an employer’s primary goal, since that effectively clears the employer’s record in the event of future inspections, which could otherwise result in costly repeat citations.
I’ve had very good luck with informal conferences. Be prepared. Know the law. Know the RAGAGEP.