Ark. Code Ann. § 26-51-1509

For purposes of this subchapter, the recordkeeping provisions of § 26-18-506 requiring a taxpayer to maintain records for six (6) years after a return is filed shall be extended to require the taxpayer claiming a wetland and riparian zone creation and restoration tax credit under this subchapter to maintain the required records for the required minimum life of the project plus three (3) years.