---
type: "Bill"
title: "Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program"
description: "Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program"
jurisdiction: "us/states/md"
legislature: "Maryland General Assembly"
session: "2021"
identifier: "SB 636"
citation: "Maryland SB 636 (2021)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Hayes"]
version_count: 3
action_count: 15
vote_count: 2
first_action: "2021-01-29"
last_action: "2021-05-30"
source: "openstates"
source_identifier: "ocd-bill/98be9eec-0219-4fcf-be52-afdb11cd50a5"
source_url: "http://mgaleg.maryland.gov/mgawebsite/Legislation/Details/sb0636?ys=2021RS&search=True"
source_hash: "f3119ebe76032ea9ba3432b6aa844960b9f8286ee4d425e901f059b32f38a7c4"
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 SB 636 (2021) — Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program

## Version chain

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

1. **Chapter - Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/Chapters_noln/CH_583_sb0636t.pdf)
2. **First - Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/sb/sb0636f.pdf)
3. **Third - Housing and Community Development - Neighborhood Revitalization - Passive House Pilot Program** (committee substitute) — [source](http://mgaleg.maryland.gov/2021RS/bills/sb/sb0636t.pdf)

## Votes

- On Third Reading — **113–25** (pass) · lower
- On Third Reading — **45–0** (pass) · upper

## Sponsors

- Hayes — primary (person)

## Timeline

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

- **2021-01-29** First Reading Education, Health, and Environmental Affairs and Budget and Taxation `referral-committee`
- **2021-02-10** Hearing 2/23 at 1:00 p.m. (Education, Health, and Environmental Affairs)
- **2021-02-12** Reassigned to Education, Health, and Environmental Affairs
- **2021-02-23** Hearing canceled
- **2021-02-23** Hearing 2/23 at 1:15 p.m.
- **2021-03-18** Favorable Report by Education, Health, and Environmental Affairs `committee-passage-favorable`
- **2021-03-18** Favorable Adopted `committee-passage-favorable`
- **2021-03-18** Second Reading Passed
- **2021-03-19** Third Reading Passed `passage`
- **2021-03-20** Referred Environment and Transportation `referral-committee`
- **2021-04-09** Favorable Report by Environment and Transportation `committee-passage-favorable`
- **2021-04-09** Favorable Adopted Second Reading Passed `committee-passage-favorable`
- **2021-04-12** Third Reading Passed `passage`
- **2021-04-12** Returned Passed
- **2021-05-30** Enacted under Article II, Section 17(c) of the Maryland Constitution - Chapter 583 `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/98be9eec-0219-4fcf-be52-afdb11cd50a5`. Confidence: reported (aggregated from official Maryland legislature records).