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Commercial motor carrier information
515-237-3268

Commercial motor vehicle enforcement line
800-925-6469 (toll free in Iowa)
omve@dot.iowa.gov

Driver’s license information 
800-532-1121 (toll free in Iowa) or 515-244-8725
Fax: 515-239-1837
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Investigative Bureau
866-908-4636 (toll free)
invbureau@dot.iowa.gov

Oversize/Overweight permits
515-237-3264

Vehicle registration information
515-237-3110
Vehicle registration is handled by your county treasurer's office. Please contact them for questions regarding your registration fees.

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