Iowa Code § 321J.21 : TRANSPORTATION — VEHICLES — OPERATING WHILE INTOXICATED — Driving while license suspended, denied, revoked, or barred
1. A person whose driver's license or nonresident operating privilege has been suspended, denied, revoked, or barred due to a violation of this chapter and who drives a motor vehicle while the license or privilege is suspended, denied, revoked, or barred commits a serious misdemeanor. In addition to any other penalties, the punishment imposed for a violation of this subsection shall include assessment of a fine of one thousand dollars.
2. In addition to the fine, the department, upon receiving the record of the conviction of a person under this section upon a charge of driving a motor vehicle while the license of the person was suspended, denied, revoked, or barred shall extend the period of suspension, denial, revocation, or bar for an additional like period.