---
type: "Bill"
title: "vehicles and loads; gross weight"
description: "vehicles and loads; gross weight"
jurisdiction: "us/states/az"
legislature: "Arizona Legislature"
session: "55th-1st-regular"
identifier: "SB 1291"
citation: "Arizona SB 1291 (55th-1st-regular)"
classification: ["bill"]
subjects: ["DEFINITION", "EXCEPTIONS", "GROSS WEIGHT", "GROSS WEIGHT RESTRICTIONS", "LOADS (H)", "NATURAL GAS VEHICLE", "STRIKE EVERYTHING AMENDMENT", "TRANSPORTATION - TITLE 28", "VEHICLE LOAD", "VEHICLE SIZE", "VEHICLE WEIGHT", "VEHICLES", "ZERO EMISSION TECHNOLOGIES", "ZERO EMISSION VEHICLES"]
status: "enacted"
primary_sponsors: ["Thomas Shope"]
version_count: 4
action_count: 14
vote_count: 3
first_action: "2021-01-25"
last_action: "2021-04-28"
source: "openstates"
source_identifier: "ocd-bill/0ea1113d-c102-4b45-ada4-4433a0c07d3e"
source_url: "https://apps.azleg.gov/BillStatus/BillOverview/75111?SessionId=123"
source_hash: "e9fb9746059669ab2723d4a533147164c185e0adbe9e91a3b3b89bdfba5479d5"
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-az"]
---

# Arizona SB 1291 (55th-1st-regular) — vehicles and loads; gross weight

## Version chain

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

1. **Chaptered Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/laws/0302.htm)
2. **Introduced Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/SB1291P.htm)
3. **SENATE - Transportation and Technology - Strike Everything** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/adopted/S.1291TAT.DOCX.htm)
4. **Senate Engrossed Version** (committee substitute) — [source](https://www.azleg.gov/legtext/55leg/1R/bills/SB1291S.htm)

## Votes

- do pass amended — **0–0** (fail) · upper
- Passed — **28–0** (pass) · upper
- Passed — **57–3** (pass) · lower

## Sponsors

- Thomas Shope — primary (person)

## Timeline

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

- **2021-01-25** Senate First Reading `reading-1`
- **2021-01-26** Senate Second Reading `reading-2`
- **2021-02-15** DPA/SE `amendment-passage`
- **2021-02-24** DPA `amendment-passage`
- **2021-02-25** PASSED `passage, reading-3`
- **2021-02-25** Transmit to House
- **2021-03-09** House First Reading. `reading-1`
- **2021-03-10** House Second Reading `reading-2`
- **2021-03-17** DP `committee-passage`
- **2021-03-22** House Placed on Consent Calendar
- **2021-04-22** PASSED `passage, reading-3`
- **2021-04-22** Transmit to Senate
- **2021-04-22** Transmit to Governor `executive-receipt`
- **2021-04-28** Signed by Governor `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/0ea1113d-c102-4b45-ada4-4433a0c07d3e`. Confidence: reported (aggregated from official Arizona legislature records).