---
type: "Bill"
title: "Interior Design Practice"
description: "Under current law, interior design work is exempted from the types of work regulated under the laws governing the practice of architecture. The act modifies the interior design exemption:"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2020A"
identifier: "HB 20-1165"
citation: "Colorado HB 20-1165 (2020A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Don Coram", "Hugh McKean", "Rachel Zenzinger", "Tracy Kraft-Tharp"]
version_count: 9
action_count: 13
vote_count: 2
first_action: "2020-01-28T07:00:00+00:00"
last_action: "2020-04-01T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/4fe2faa6-78cd-4950-864d-4baab473746c"
source_url: "http://leg.colorado.gov/bills/hb20-1165"
source_hash: "bbf98ea7e5debbb2af61fd6d315801342b76685210bacf8eb277a772299c38bc"
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-co"]
---

# Colorado HB 20-1165 (2020A) — Interior Design Practice

Under current law, interior design work is exempted from the types of work regulated under the laws governing the practice of architecture. The act modifies the interior design exemption:

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_hb1165_s_blt_001.pdf)
2. **Engrossed (02/21/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_eng.pdf)
3. **Final Act (03/17/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_enr.pdf)
4. **Introduced (01/28/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_01.pdf)
5. **PA1 (02/19/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165bus_01.pdf)
6. **Reengrossed (02/27/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_ren.pdf)
7. **Rerevised (03/14/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_rer.pdf)
8. **Revised (03/13/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_1165_rev.pdf)
9. **Signed Act (04/01/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_1165_signed.pdf)

## Votes

- BILL — **30–0** (pass) · upper
- BILL — **64–0** (pass) · lower

## Sponsors

- Don Coram — primary (person)
- Hugh McKean — primary (person)
- Rachel Zenzinger — primary (person)
- Tracy Kraft-Tharp — primary (person)

## Timeline

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

- **2020-04-01T06:00:00+00:00** Governor Signed `executive-signature`
- **2020-03-23T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2020-03-17T06:00:00+00:00** Signed by the Speaker of the House
- **2020-03-17T06:00:00+00:00** Signed by the President of the Senate
- **2020-03-14T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2020-03-13T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2020-03-11T06:00:00+00:00** Senate Committee on Business, Labor, & Technology Refer Unamended - Consent Calendar to Senate Committee of the Whole `committee-passage`
- **2020-02-28T07:00:00+00:00** Introduced In Senate - Assigned to Business, Labor, & Technology `introduction`
- **2020-02-27T07:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2020-02-24T07:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2020-02-21T07:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee
- **2020-02-18T07:00:00+00:00** House Committee on Business Affairs & Labor Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
- **2020-01-28T07:00:00+00:00** Introduced In House - Assigned to Business Affairs & Labor `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/4fe2faa6-78cd-4950-864d-4baab473746c`. Confidence: reported (aggregated from official Colorado legislature records).