Tennessee Modular Units Dealer Bond ($50,000) The Dealer of Modular Building Units Surety Bond is required by the state of Tennessee Commissioner of the Department of Commerce and Insurance. The Bond amount (Penalty) required for this Bond is $50,000. This Bond is designed to protect anyone who might suffer loss or damage from negligence of the Tennessee Modular Building Act. The principal will also be expected to comply with all local and state laws.