This bill designates the segment of U.S. Highway 30 within the corporate limits of Marshalltown as the "Staff Sergeant William Nathaniel Howard Highway" in honor of Staff Sergeant William Nate Howard, who was killed in action in Palmyra, Syria, on December 13, 2025, while serving in the Iowa Army National Guard. The bill emphasizes the significance of this designation as a tribute to Howard's service and sacrifice.

Additionally, the bill includes an applicability provision stating that the designation will remain in effect for the specified segment of U.S. Highway 30 regardless of any future changes to the highway's designation by the U.S. government. The costs associated with the signage for this designation will be covered by the primary road fund, as stipulated in Code section 321.346.