CLS' IRS Filings, these documents are available in Adobe PDF format. 2021| 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004