Under most circumstances, when your loan matures you can refinance and extend your loan for a new term. However, many state regulators update their licensing requirements at least annually. Sometimes, these updates include changes to the minimum/maximum allowable loan amounts, APR restrictions, and/or the origination fee restrictions. Because of that, this could mean that you may not be able to refinance under the same exact terms and conditions as your original loan.
If you do wish to refinance, you can see how to refinance HERE.