---
type: "Bill"
title: "Maryland Commercial Fertilizer Law - Definition of Soil Conditioner - Alteration"
description: "Maryland Commercial Fertilizer Law - Definition of Soil Conditioner - Alteration"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2019"
identifier: "HB 511"
citation: "Maryland HB 511 (2019)"
classification: ["bill"]
subjects: ["Agriculture", "Agriculture", "Fertilizers", "Industry and Technology"]
status: "enacted"
primary_sponsors: ["Cassilly"]
version_count: 1
action_count: 14
vote_count: 2
first_action: "2019-02-04"
last_action: "2019-04-30"
source: "openstates"
source_identifier: "ocd-bill/753a42c7-9187-4c88-b5eb-53bde5ae5571"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB511&stab=01&pid=billpage&tab=subject3&ys=2019rs"
source_hash: "d3d209347373d2514bd956d3e817117005c2b33b04c069d039c46ed33bed3a75"
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 511 (2019) — Maryland Commercial Fertilizer Law - Definition of Soil Conditioner - Alteration

## 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/2019RS/bills/hb/hb0511f.pdf)

## Votes

- On Third Reading — **138–0** (pass) · lower
- On Third Reading — **45–0** (pass) · upper

## Sponsors

- Cassilly — primary (person)

## Timeline

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

- **2019-02-04** First Reading Environment and Transportation `referral-committee`
- **2019-02-07** Hearing 2/27 at 1:00 p.m.
- **2019-03-11** Favorable Report by Environment and Transportation `committee-passage-favorable`
- **2019-03-12** Favorable Report Adopted `committee-passage-favorable`
- **2019-03-12** Second Reading Passed
- **2019-03-14** Third Reading Passed (138-0) `passage`
- **2019-03-15** First Reading Education, Health, and Environmental Affairs `referral-committee`
- **2019-03-18** Hearing 3/26 at 1:00 p.m.
- **2019-04-03** Favorable Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2019-04-03** Favorable Report Adopted `committee-passage-favorable`
- **2019-04-03** Second Reading Passed
- **2019-04-04** Third Reading Passed (45-0) `passage`
- **2019-04-04** Returned Passed
- **2019-04-30** Approved by the Governor - Chapter 367 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/753a42c7-9187-4c88-b5eb-53bde5ae5571`. Confidence: reported (aggregated from official Maryland legislature records).