DR 0172 - Contractor Application for Exemption Certificate 
 
You want to build and we’re here to help! 
 
TIPS to get your application approved the first time: 
 
✓
 Submit your application 10-14 business days or 2 weeks prior to the 

project start date. 

✓
 Read the instructions and complete the application in full. 
 
✓
 Include your Colorado Account Number (CAN) in the Colorado 
withholding tax account number field. NOTE: Applications that are 
left blank or list N/A will NOT be processed.  
 
✓
 Enter the scheduled construction start and estimated completion 
dates. Ensure the completion dates listed on the application can be 
validated by the attached contract, award letter, agreement or 
purchase order. 
 
✓
 Include the exempt organization’s number. NOTE: Failure to provide 
DR 0172 TIPS 
this number will cause your application to be rejected. 
HELPFUL HINT: An exempt organization’s Colorado exemption 
account number will begin with a “98 ”.  Please contact the exempt 
organization to obtain or verify this information prior to submitting 
your application.  
 
✓
 Attach a copy of the contract or agreement to include the following: 
o The type and scope of work. 
o The bid amount. HELPFUL HINT: The same amount, to the penny, 
should be listed on your application. 
o The project start and estimated completion dates. 
o A copy of the contract signed by the contracting parties involved 
in the project, including the exempt organization. 
 
Education and Training 1 of 1 Revised August 2022