Ark. Code § 19-8-110
It shall be lawful for any person, firm, or corporation required by law to maintain a cash deposit as public security, or in lieu thereof to file a bond of approved security in favor of the State of Arkansas, to deposit with the officer of the State of Arkansas designated as the custodian of funds, in lieu of a cash deposit, an amount of notes, bonds, debentures, or other similar obligations issued by the Federal Land Banks, Federal Intermediate Credit Banks, or Banks for Cooperatives, or any other obligations issued pursuant to the provisions of an act of the United States Congress known as the Farm Credit Act of 1971, and acts amendatory thereto, which at the market value thereof shall equal or be in excess of the amount required as cash deposit.
Ark. Code § 19-8-110