---
type: "Bill"
title: "Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers"
description: "Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2024"
identifier: "HB 646"
citation: "Maryland HB 646 (2024)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Arikan", "Bagnall", "D. Jones", "Phillips", "Roberson", "Schmidt", "Simmons", "Wilkins", "Williams", "Wims", "Young"]
version_count: 3
action_count: 12
vote_count: 1
first_action: "2024-01-25"
last_action: "2024-04-09"
source: "openstates"
source_identifier: "ocd-bill/ba87045c-3f78-4336-a3c8-4545d05e944d"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0646?ys=2024RS&search=True"
source_hash: "5976f3f328272c905edef35dac1fcf39d98a30d91e0a1f2822f737e4f1b6df20"
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-md"]
---

# Maryland HB 646 (2024) — Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers

## Version chain

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

1. **Chapter - Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/Chapters_noln/CH_15_hb0646t.pdf)
2. **First - Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0646f.pdf)
3. **Third - Income Tax - Subtraction Modification - Police Auxiliary and Reserve Volunteers** (committee substitute) — [source](http://mgaleg.maryland.gov/2024RS/bills/hb/hb0646t.pdf)

## Votes

- On Third Reading — **130–1** (pass) · lower

## Sponsors

- Arikan — primary (person)
- Bagnall — primary (person)
- D. Jones — primary (person)
- Phillips — primary (person)
- Roberson — primary (person)
- Schmidt — primary (person)
- Simmons — primary (person)
- Wilkins — primary (person)
- Williams — primary (person)
- Wims — primary (person)
- Young — primary (person)

## Timeline

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

- **2024-01-25** First Reading Ways and Means `referral-committee`
- **2024-01-25** Hearing 2/15 at 1:00 p.m.
- **2024-02-27** Favorable Report by Ways and Means `committee-passage-favorable`
- **2024-02-28** Favorable Adopted `committee-passage-favorable`
- **2024-02-28** Second Reading Passed
- **2024-03-01** Third Reading Passed `passage`
- **2024-03-04** Referred Budget and Taxation `referral-committee`
- **2024-03-25** Favorable Report by Budget and Taxation `committee-passage-favorable`
- **2024-03-26** Favorable Adopted Second Reading Passed `committee-passage-favorable`
- **2024-03-27** Third Reading Passed `passage`
- **2024-03-28** Returned Passed
- **2024-04-09** Approved by the Governor - Chapter 15 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ba87045c-3f78-4336-a3c8-4545d05e944d`. Confidence: reported (aggregated from official Maryland legislature records).