3M CO | 2013 | FY | 3


Reconciliation of Effective Income Tax Rate       
           
   2013  2012  2011 
Statutory U.S. tax rate  35.0%  35.0%  35.0%
State income taxes - net of federal benefit  0.9   0.9   0.7 
International income taxes - net   (6.3)   (4.2)   (4.6) 
U.S. research and development credit  (0.7)     (0.5) 
Reserves for tax contingencies  1.2   (1.9)   (1.2) 
Domestic Manufacturer's deduction  (1.6)   (1.2)   (1.5) 
All other - net  (0.4)   0.4   (0.1) 
 Effective worldwide tax rate  28.1%  29.0%  27.8%

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