Income Taxes	9 Months Ended
Jul. 31, 2012
Income Taxes	12. Income Taxes The effective tax rates on income from continuing operations for the three months ended July 31, 2012 and 2011 were 41.3% and 26.1%, respectively. The effective tax rates on income from continuing operations for the nine months ended July 31, 2012 and 2011 were 38.8% and 32.2%, respectively. The tax provision for the three and nine months ended July 31, 2011 included a tax benefit of $4.7 million related to a re-measurement of certain unrecognized tax benefits. Additionally, the effective tax rate for the three and nine months ended July 31, 2012 increased due to the expiration of employment based tax credits as of December 31, 2011. At July 31, 2012, the Company had unrecognized tax benefits of $96.7 million, all of which, if recognized in the future, would impact its effective tax rate. Approximately $0.8 million of the Company’s unrecognized tax benefits has been recognized as a current liability. The Company includes interest and penalties related to unrecognized tax benefits in income tax expense. As of July 31, 2012, the Company had accrued interest related to uncertain tax positions of $1.4 million. The Company estimates that a decrease in unrecognized tax benefits up to approximately $8.7 million is reasonably possible over the next twelve months. The Company’s major tax jurisdiction is the United States. U.S. federal income tax returns for ABM, OneSource Services, Inc., and the Linc entities that are taxable as corporations, remain open for examination for the periods ending October 31, 2006 through October 31, 2011, March 31, 2000 through November 14, 2007, and December 31, 2008 through December 31, 2010, respectively. ABM is currently being examined by the Internal Revenue Service (“IRS”) for the tax years 2006 through 2008. The Company does business in all 50 states, significantly in California, Texas, and New York, as well as in various foreign jurisdictions. In major state jurisdictions, the tax years 2007 through 2011 remain open and subject to examination by appropriate tax authorities. The Company is currently being examined by the state taxing authorities in Illinois, Michigan, Utah, New Jersey, Massachusetts and Texas, and by the Commonwealth of Puerto Rico.

Income Taxes

9 Months Ended

Jul. 31, 2012

12. Income Taxes

The effective tax rates on income from continuing operations for the three months ended July 31, 2012 and 2011 were 41.3% and 26.1%, respectively. The effective tax rates on income from continuing operations for the nine months ended July 31, 2012 and 2011 were 38.8% and 32.2%, respectively. The tax provision for the three and nine months ended July 31, 2011 included a tax benefit of $4.7 million related to a re-measurement of certain unrecognized tax benefits. Additionally, the effective tax rate for the three and nine months ended July 31, 2012 increased due to the expiration of employment based tax credits as of December 31, 2011. At July 31, 2012, the Company had unrecognized tax benefits of $96.7 million, all of which, if recognized in the future, would impact its effective tax rate. Approximately $0.8 million of the Company’s unrecognized tax benefits has been recognized as a current liability. The Company includes interest and penalties related to unrecognized tax benefits in income tax expense. As of July 31, 2012, the Company had accrued interest related to uncertain tax positions of $1.4 million. The Company estimates that a decrease in unrecognized tax benefits up to approximately $8.7 million is reasonably possible over the next twelve months.

The Company’s major tax jurisdiction is the United States. U.S. federal income tax returns for ABM, OneSource Services, Inc., and the Linc entities that are taxable as corporations, remain open for examination for the periods ending October 31, 2006 through October 31, 2011, March 31, 2000 through November 14, 2007, and December 31, 2008 through December 31, 2010, respectively. ABM is currently being examined by the Internal Revenue Service (“IRS”) for the tax years 2006 through 2008. The Company does business in all 50 states, significantly in California, Texas, and New York, as well as in various foreign jurisdictions. In major state jurisdictions, the tax years 2007 through 2011 remain open and subject to examination by appropriate tax authorities. The Company is currently being examined by the state taxing authorities in Illinois, Michigan, Utah, New Jersey, Massachusetts and Texas, and by the Commonwealth of Puerto Rico.