---
type: "Bill"
title: "AN ACT relating to mechanical systems. Amend KRS 236.060 to exempt compressed air receivers of 120 gallons or less from KRS 236.005 to 236.150; remove cryogenic service piping, hydrogen piping, piping associated with a pressure vessel for human occupancy, and refrigeration service piping in safety group from the list of exemptions of piping associated with boilers and pressure vessels in KRS Chapter 236."
description: "AN ACT relating to mechanical systems. Amend KRS 236.060 to exempt compressed air receivers of 120 gallons or less from KRS 236.005 to 236.150; remove cryogenic service piping, hydrogen piping, piping associated with a pressure vessel for human occupancy, and refrigeration service piping in safety group from the list of exemptions of piping associated with boilers and pressure vessels in KRS Chapter 236."
jurisdiction: "us/states/ky"
legislature: "Kentucky General Assembly"
session: "2018RS"
identifier: "HB 307"
citation: "Kentucky HB 307 (2018RS)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["DJ Johnson"]
version_count: 1
action_count: 18
vote_count: 0
first_action: "2018-02-05"
last_action: "2018-04-02"
source: "openstates"
source_identifier: "ocd-bill/1c8234ef-0f4c-4597-b55e-44021ccc4662"
source_url: "http://www.lrc.ky.gov/record/18RS/HB307.htm"
source_hash: "f1e5498e8cf60a6cb6ab637d1ce9ea375518b7b0ed61e54e71a17f745c2c584b"
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-ky"]
---

# Kentucky HB 307 (2018RS) — AN ACT relating to mechanical systems. Amend KRS 236.060 to exempt compressed air receivers of 120 gallons or less from KRS 236.005 to 236.150; remove cryogenic service piping, hydrogen piping, piping associated with a pressure vessel for human occupancy, and refrigeration service piping in safety group from the list of exemptions of piping associated with boilers and pressure vessels in KRS Chapter 236.

## Version chain

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

1. **Most Recent Version** (committee substitute) — [source](http://www.lrc.ky.gov/recorddocuments/bill/18RS/HB307/bill.pdf)

## Sponsors

- DJ Johnson — primary (person)

## Timeline

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

- **2018-02-05** Introduced in House `introduction`
- **2018-02-07** To Veterans, Military Affairs, and Public Protection (H) `referral-committee`
- **2018-02-08** Posted in committee
- **2018-02-14** Reported favorably, 1st reading, to Consent Calendar `reading-1`
- **2018-02-15** 2nd reading, to Rules `reading-2`
- **2018-02-15** Posted for passage in the Consent Orders of the Day for Friday, February 16, 2018
- **2018-02-16** 3rd reading, passed 84-0 `reading-3, passage`
- **2018-02-20** Received in Senate
- **2018-02-21** To Veterans, Military Affairs, & Public Protection (S) `referral-committee`
- **2018-03-15** Reported favorably, 1st reading, to Consent Calendar `reading-1`
- **2018-03-16** 2nd reading, to Rules `reading-2`
- **2018-03-20** Posted for passage in the Consent Orders of the Day for Thursday, March 22, 2018
- **2018-03-22** 3rd reading, passed 37-0 `reading-3, passage`
- **2018-03-22** Received in House
- **2018-03-22** Enrolled, signed by Speaker of the House
- **2018-03-27** Enrolled, signed by President of the Senate
- **2018-03-27** Delivered to Governor
- **2018-04-02** Signed by Governor (Acts, ch. 59) `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/1c8234ef-0f4c-4597-b55e-44021ccc4662`. Confidence: reported (aggregated from official Kentucky legislature records).