91st General Assembly · Funnel one-pager · Monday, November 9, 2026

SF 378: Relating to speed limits, including the speed limit range for which certain excessive speed violations cannot be considered for certain purposes and the default speed limit for all vehicular traffic, and making penalties applicable

Signed into law

What it does

Under current law, the default speed limit for all vehicular traffic is miles per hour (MPH) unless otherwise provided. A speed limit is provided for streets or highways on which a cattle guard is installed (15 MPH), business districts (20 MPH), residential or school districts (25 MPH), state parks and preserves (35 MPH), suburban districts (45 MPH), board of regents institution roads (45 MPH), unpaved secondary roads (55 MPH between sunrise and sunset and MPH between sunset and sunrise), fully controlled-access, divided, multilaned highways (65 MPH), certain divided multilaned highways that are not fully access-controlled, if selected by the department of transportation (DOT) (65 MPH), and highways that are part of the interstate road system (70 MPH).

Cost

Cost: up to $825,000

Senate File 378 is estimated to have a one-time cost of $825,000 which will occur across two fiscal years, as shown in Figure 1. Of this amount, $518,000 will occur in FY 2027. Any costs incurred by the DOT will be paid from the PRF. Any costs for county sign …

House subcommittee · named March 5, 2026

Rep. Megan Jones (R) · megan.jones@legis.iowa.gov
Rep. Daniel Gosa (D) · daniel.gosa@legis.iowa.gov
Rep. Brent Siegrist (R) · brent.siegrist@legis.iowa.gov

Lobbying · 0 for, 1 against

Against: State Police Officers Council

In plain words

February 19, 2025Filed in the Senate
February 19, 2025Approved by the Senate committee
March 18, 2025Passed the Senate, 36–12
March 18, 2025Arrived in the House
March 26, 2025House subcommittee named: Bossman, Cooling and Mommsen
April 1, 2025Subcommittee recommended passing it
April 1, 2025Cost estimate (fiscal note) posted
March 3, 2026House subcommittee named: Meggers, Gosa and Henderson
March 5, 2026House subcommittee named: Jones, Gosa and Siegrist
March 11, 2026Subcommittee recommended passing it
March 18, 2026Approved by the House committee
March 18, 2026Committee vote: 19–0
April 1, 2026Passed the House, 76–16
April 7, 2026Cost estimate (fiscal note) posted
April 22, 2026Passed the Senate, 28–16
May 5, 2026Sent to the Governor
June 1, 2026Signed into law
June 2, 2026Cost estimate (fiscal note) posted