---
type: "Bill"
title: "Relating to: operation of unregistered vehicles. (FE)"
description: "Relating to: operation of unregistered vehicles. (FE)"
jurisdiction: "us/states/wi"
legislature: "Wisconsin Legislature"
session: "2021"
identifier: "SB 437"
citation: "Wisconsin SB 437 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Marklein", "Nass"]
version_count: 1
action_count: 33
vote_count: 1
first_action: "2021-06-24T05:00:00+00:00"
last_action: "2021-12-06T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/65b064cf-4d88-4b2a-a80b-de376a79e846"
source_url: "https://docs.legis.wisconsin.gov/2021/proposals/reg/sen/bill/sb437"
source_hash: "e9ee8e74527b56e11a53f6fa294fa009398048257c33409bd61e84b837e18648"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-wi"]
---

# Wisconsin SB 437 (2021) — Relating to: operation of unregistered vehicles. (FE)

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Bill Text** (committee substitute) — [source](https://docs.legis.wisconsin.gov/document/proposaltext/2021/REG/SB437)

## Votes

- Report passage recommended by Committee on Judiciary and Public Safety, Ayes 6, Noes 0 — **6–0** (pass) · upper

## Sponsors

- Marklein — primary (person)
- Nass — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-06-24T05:00:00+00:00** Introduced by Senators Marklein and Nass; cosponsored by Representatives Novak, Dittrich, Knodl, Kuglitsch, Moses, Spiros, Brandtjen and Murphy `introduction`
- **2021-06-24T05:00:00+00:00** Read first time and referred to Committee on Judiciary and Public Safety `reading-1, referral-committee`
- **2021-07-09T05:00:00+00:00** Fiscal estimate received `receipt`
- **2021-07-15T05:00:00+00:00** Representative Schraa added as a cosponsor
- **2021-07-16T05:00:00+00:00** Representative Callahan added as a cosponsor
- **2021-07-29T05:00:00+00:00** Senator Feyen added as a coauthor
- **2021-08-04T05:00:00+00:00** Representative Penterman added as a cosponsor
- **2021-09-09T05:00:00+00:00** LRB correction
- **2021-09-09T05:00:00+00:00** Public hearing held
- **2021-09-15T05:00:00+00:00** Senator Wanggaard added as a coauthor
- **2021-09-16T05:00:00+00:00** Executive action taken
- **2021-09-16T05:00:00+00:00** Report passage recommended by Committee on Judiciary and Public Safety, Ayes 6, Noes 0 `committee-passage-favorable`
- **2021-09-16T05:00:00+00:00** Available for scheduling
- **2021-09-24T05:00:00+00:00** Placed on calendar 9-28-2021 pursuant to Senate Rule 18(1)
- **2021-09-28T05:00:00+00:00** Read a second time `reading-2`
- **2021-09-28T05:00:00+00:00** Ordered to a third reading `reading-3`
- **2021-09-28T05:00:00+00:00** Rules suspended
- **2021-09-28T05:00:00+00:00** Read a third time and passed `passage, reading-3`
- **2021-09-28T05:00:00+00:00** Ordered immediately messaged
- **2021-09-28T05:00:00+00:00** Received from Senate `receipt`
- **2021-10-21T05:00:00+00:00** Read first time and referred to committee on Rules `referral-committee`
- **2021-10-21T05:00:00+00:00** Placed on calendar 10-26-2021 by Committee on Rules
- **2021-10-26T05:00:00+00:00** Rules suspended to withdraw from calendar and take up `withdrawal`
- **2021-10-26T05:00:00+00:00** Read a second time `reading-2`
- **2021-10-26T05:00:00+00:00** Ordered to a third reading `reading-3`
- **2021-10-26T05:00:00+00:00** Rules suspended
- **2021-10-26T05:00:00+00:00** Read a third time and concurred in `passage, reading-3`
- **2021-10-26T05:00:00+00:00** Ordered immediately messaged
- **2021-10-27T05:00:00+00:00** Received from Assembly concurred in `receipt`
- **2021-11-02T05:00:00+00:00** Report correctly enrolled `enrolled`
- **2021-12-02T06:00:00+00:00** Presented to the Governor on 12-2-2021 `executive-receipt`
- **2021-12-06T06:00:00+00:00** Report approved by the Governor on 12-3-2021. 2021 Wisconsin Act 108 `executive-signature`
- **2021-12-06T06:00:00+00:00** Published 12-4-2021 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/65b064cf-4d88-4b2a-a80b-de376a79e846`. Confidence: reported (aggregated from official Wisconsin legislature records).