---
type: "Bill"
title: "On-Site Sewage Disposal Systems - Membrane Bioreactor (MBR) Technology - Regulations"
description: "On-Site Sewage Disposal Systems - Membrane Bioreactor (MBR) Technology - Regulations"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2017"
identifier: "HB 1045"
citation: "Maryland HB 1045 (2017)"
classification: ["bill"]
subjects: ["Environment", "Environment", "Department of", "Industry and Technology", "Rules and Regulations", "Sewage"]
status: "enacted"
primary_sponsors: ["Cassilly"]
version_count: 1
action_count: 17
vote_count: 3
first_action: "2017-02-08"
last_action: "2017-05-04"
source: "openstates"
source_identifier: "ocd-bill/83e31460-5b84-4ee5-88f8-f79ab2aa90d2"
source_url: "http://mgaleg.maryland.gov/webmga/frmMain.aspx?id=HB1045&stab=01&pid=billpage&tab=subject3&ys=2017rs"
source_hash: "9c97e23eb650d14ed677e82182762ba5a6af9ebfc51a1058406b87c9e800c5e1"
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 1045 (2017) — On-Site Sewage Disposal Systems - Membrane Bioreactor (MBR) Technology - Regulations

## 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/2017RS/bills/hb/hb1045f.pdf)

## Votes

- Third Reading — **140–0** (pass) · legislature
- Third Reading — **47–0** (pass) · legislature
- Third Reading — **138–0** (pass) · legislature

## Sponsors

- Cassilly — primary (person)

## Timeline

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

- **2017-02-08** First Reading Environment and Transportation `referral-committee`
- **2017-02-08** Hearing 2/24 at 1:00 p.m.
- **2017-03-06** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2017-03-07** Favorable with Amendments {480911/1 Report Adopted `committee-passage-favorable`
- **2017-03-07** Special Order until 3/08 (Delegate Buckel) Adopted
- **2017-03-08** Second Reading Passed with Amendments
- **2017-03-10** Third Reading Passed (138-0) `passage`
- **2017-03-13** First Reading Education, Health, and Environmental Affairs `referral-committee`
- **2017-03-15** Hearing 3/28 at 1:00 p.m.
- **2017-04-03** Favorable with Amendments Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2017-04-04** Favorable with Amendments {894434/1 Report Adopted `committee-passage-favorable`
- **2017-04-04** Second Reading Passed with Amendments
- **2017-04-05** Third Reading Passed with Amendments (47-0) `passage`
- **2017-04-06** House Concur - Senate Amendments
- **2017-04-06** Third Reading Passed (140-0) `passage`
- **2017-04-06** Passed Enrolled
- **2017-05-04** Approved by the Governor - Chapter 391 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/83e31460-5b84-4ee5-88f8-f79ab2aa90d2`. Confidence: reported (aggregated from official Maryland legislature records).