---
type: "Bill"
title: "On-Site Sewage Disposal Systems - Inspection - Licensing"
description: "On-Site Sewage Disposal Systems - Inspection - Licensing"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2021"
identifier: "HB 407"
citation: "Maryland HB 407 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Stein"]
version_count: 4
action_count: 18
vote_count: 3
first_action: "2020-08-25"
last_action: "2021-05-30"
source: "openstates"
source_identifier: "ocd-bill/5312545e-357d-4cd1-afdf-26c120f73c4b"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0407?ys=2021RS&search=True"
source_hash: "cca57bfedae3a2212f0b706c56dcdd59b3e38b77c095e955676c58e1772551b0"
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 407 (2021) — On-Site Sewage Disposal Systems - Inspection - Licensing

## Version chain

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

1. **Chapter - On-Site Sewage Disposal Systems - Inspection - Licensing** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/Chapters_noln/CH_444_hb0407e.pdf)
2. **Enrolled - On-Site Sewage Disposal Systems - Inspection - Licensing** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0407e.pdf)
3. **First - On-Site Sewage Disposal Systems - Inspection - Licensing** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0407f.pdf)
4. **Third - On-Site Sewage Disposal Systems - Inspection - Licensing** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/hb/hb0407t.pdf)

## Votes

- On Third Reading and Final Passage (Hse concurred) — **112–26** (pass) · lower
- On Third Reading — **103–29** (pass) · lower
- On Third Reading (Amend) — **37–10** (pass) · upper

## Sponsors

- Stein — primary (person)

## Timeline

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

- **2020-08-25** Pre-filed `introduction`
- **2021-01-13** First Reading Environment and Transportation `referral-committee`
- **2020-12-22** Hearing 1/27 at 1:30 p.m.
- **2021-02-15** Favorable with Amendments Report by Environment and Transportation `committee-passage-favorable`
- **2021-02-16** Favorable with Amendments { `committee-passage-favorable`
- **2021-02-16** Second Reading Passed with Amendments
- **2021-02-18** Third Reading Passed `passage`
- **2021-02-19** Referred Education, Health, and Environmental Affairs `referral-committee`
- **2021-04-01** Favorable Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2021-04-01** Motion Special Order until Later Today (Senator Hough) Adopted
- **2021-04-01** Favorable Adopted `committee-passage-favorable`
- **2021-04-01** Floor Amendment {
- **2021-04-01** Second Reading Passed with Amendments
- **2021-04-06** Third Reading Passed `passage`
- **2021-04-08** House Concurs Senate Amendments
- **2021-04-08** Third Reading Passed `passage`
- **2021-04-08** Passed Enrolled
- **2021-05-30** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 444 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5312545e-357d-4cd1-afdf-26c120f73c4b`. Confidence: reported (aggregated from official Maryland legislature records).