---
type: "Bill"
title: "\"INTERNATIONAL YEAR OF CAVES & KARST\""
description: "\"INTERNATIONAL YEAR OF CAVES & KARST\""
jurisdiction: "us/states/nm"
legislature: "New Mexico Legislature"
session: "2021"
identifier: "HM 12"
citation: "New Mexico HM 12 (2021)"
classification: ["memorial"]
subjects: ["MEMORIALS", "OTHER"]
status: "enacted"
primary_sponsors: ["Armstrong, Gail", "Brown, Cathrynn N."]
version_count: 2
action_count: 4
vote_count: 0
first_action: "2021-02-18"
last_action: "2021-03-08"
source: "openstates"
source_identifier: "ocd-bill/c669ee0c-2cc3-4037-8c3a-6f58802d0f67"
source_url: "http://www.nmlegis.gov/Legislation/Legislation?chamber=H&legType=M&legNo=12&year=21"
source_hash: "e7adca77f1c8e82b1ac08fa953c7f8372824bf65693f97e3b1fba98706c09048"
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-nm"]
---

# New Mexico HM 12 (2021) — "INTERNATIONAL YEAR OF CAVES & KARST"

## Version chain

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

1. **Final Version** (committee substitute) — [source](http://www.nmlegis.gov/Sessions/21%20Regular/final/HM012.PDF)
2. **introduced version** (committee substitute) — [source](http://www.nmlegis.gov/Sessions/21%20Regular/memorials/house/HM012.HTML)

## Sponsors

- Armstrong, Gail — primary (person)
- Brown, Cathrynn N. — primary (person)

## Timeline

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

- **2021-02-18** not printed, not referred to committee, tabled
- **2021-03-01** withdrawn from committee `withdrawal`
- **2021-03-03** passed House `passage`
- **2021-03-08** Signed `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/c669ee0c-2cc3-4037-8c3a-6f58802d0f67`. Confidence: reported (aggregated from official New Mexico legislature records).