Do your Iowa repair orders give the required estimate rights and 10% overage protection?

Iowa's Motor Vehicle Service Trade Practices Act gives consumers the right to a written or oral estimate when expected repair/service cost is more than $50. The authorization form must include the statutory estimate disclosure. A bill may not exceed the estimate by more than 10% unless the customer approves a higher amount before repairs are finished. The supplier must also obtain authorization for additional unforeseen necessary repairs when their cost is more than 10% of the original estimate.