---
type: "Bill"
title: "Agriculture – Palmer Amaranth – Study"
description: "Agriculture – Palmer Amaranth – Study"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2018"
identifier: "HB 515"
citation: "Maryland HB 515 (2018)"
classification: ["bill"]
subjects: ["Agriculture", "Agriculture", "Department of", "Agriculture", "Assessments", "Committees and Commissions", "Hazardous and Toxic Substances", "Highway Administration", "State", "Industry and Technology", "Reports"]
status: "enacted"
primary_sponsors: ["Ghrist"]
version_count: 1
action_count: 14
vote_count: 2
first_action: "2018-01-26"
last_action: "2018-04-24"
source: "openstates"
source_identifier: "ocd-bill/aa5871ee-bd6f-4ffa-b76f-d544c77e789e"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB515&stab=01&pid=billpage&tab=subject3&ys=2018rs"
source_hash: "a59498fb600a84419154f9381afd45c3eb9e516ccc55d24308d84284f794993c"
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 515 (2018) — Agriculture – Palmer Amaranth – Study

## Version chain

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

1. **Bill Text** (committee substitute) — [source](http://mgaleg.maryland.gov/2018RS/bills/hb/hb0515f.pdf)

## Votes

- On Third Reading — **138–0** (pass) · lower
- On Third Reading — **46–0** (pass) · upper

## Sponsors

- Ghrist — primary (person)
- Adams — cosponsor (person)
- Arentz — cosponsor (person)
- Jacobs — cosponsor (person)
- Mautz — cosponsor (person)

## Timeline

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

- **2018-01-26** First Reading Environment and Transportation `referral-committee`
- **2018-01-30** Hearing 2/14 at 1:00 p.m.
- **2018-03-05** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2018-03-06** Favorable with Amendments {790714/1 Report Adopted `committee-passage-favorable`
- **2018-03-06** Second Reading Passed with Amendments
- **2018-03-08** Third Reading Passed (138-0) `passage`
- **2018-03-09** First Reading Education, Health, and Environmental Affairs `referral-committee`
- **2018-03-15** Hearing 3/20 at 1:00 p.m.
- **2018-03-26** Favorable Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2018-03-27** Favorable Report Adopted `committee-passage-favorable`
- **2018-03-27** Second Reading Passed
- **2018-03-28** Third Reading Passed (46-0) `passage`
- **2018-03-29** Returned Passed
- **2018-04-24** Approved by the Governor - Chapter 246 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/aa5871ee-bd6f-4ffa-b76f-d544c77e789e`. Confidence: reported (aggregated from official Maryland legislature records).