Colorado Bill Modifies Irrigation Equipment Environmental Standards

CO Legislature Bill Search

Published January 1st, 2026

Detected March 25th, 2026

Summary

Colorado House Bill 23-1161, as modified by HB26-1034, repeals an environmental standard for irrigation controllers and modifies the standard for spray sprinkler bodies. The bill originally established environmental standards for irrigation controllers and spray sprinkler bodies sold or leased in the state starting January 1, 2026.

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What changed

Colorado HB26-1034 amends HB23-1161, which had established environmental standards for irrigation controllers and spray sprinkler bodies effective January 1, 2026. This new bill repeals the environmental standard for irrigation controllers entirely. It also modifies the standard for spray sprinkler bodies by removing the requirement for a check valve and changing the certification requirement from meeting WaterSense program criteria to simply being certified to the program.

This change effectively removes or alters existing environmental standards for certain irrigation equipment sold or leased in Colorado. Manufacturers and retailers of irrigation controllers will no longer be subject to the previously established environmental standard. Those selling spray sprinkler bodies will need to ensure compliance with the revised certification requirements. The effective date for these standards was January 1, 2026.

What to do next

Review HB26-1034 for specific changes to irrigation equipment standards.
Update product compliance documentation for irrigation controllers and spray sprinkler bodies.
Ensure irrigation controllers sold or leased in Colorado comply with the repealed standard (i.e., no longer need to comply), and spray sprinkler bodies meet the revised certification requirements by January 1, 2026.

Source document (simplified)

HB26-1034

Modifications to Standards for Irrigation Equipment

| Type | Bill |
| --- | --- |
| Session | 2026 Regular Session |
| Subjects | Water |
Concerning modifications to environmental standards for certain irrigation equipment.

Recent Bill (PDF) Recent Fiscal Note (PDF) Bill Summary:

House Bill 23-1161 established ~~environmental standards~~ an environmental standard for irrigation controllers ~~and spray sprinkler bodies~~ that are sold or leased in the state on and after January 1, 2026 ~~, and are not specifically excluded from the federal WaterSense program (program)~~. The bill repeals the environmental standard for irrigation controllers. ~~The bill also modifies the environmental standard for spray sprinkler bodies to:~~

~~No longer require that spray sprinkler bodies include a check valve; and~~
~~Require that spray sprinkler bodies are certified to the program, rather than requiring that spray sprinkler bodies meet the water efficiency and performance criteria of the program.~~ (Note: Italicized words indicate new material added to the original summary; dashes through words indicate deletions from the original summary.) (Note: This summary applies to the reengrossed version of this bill as introduced in the second house.)

Prime Sponsors

Representative

Dusty Johnson
Representative

Meghan Lukens
Senator

Rod Pelton
Senator

Nick Hinrichsen

Committees

House

Agriculture, Water & Natural Resources

Senate

Agriculture & Natural Resources

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Status

Under Consideration

Introduced

Under Consideration

Upcoming Schedule

1 meeting

Wed

Mar 25

Senate Third Reading of Bills - Final Passage - Consent Calendar

9:00 AM Senate Chamber

Related Documents & Information

| Date | Version | Documents |
| --- | --- | --- |
| 03/24/2026 | Revised | PDF |
| 02/23/2026 | Reengrossed | PDF |
| 02/19/2026 | Engrossed | PDF |
| 01/14/2026 | Introduced | PDF |

| Date | Version | Documents |
| --- | --- | --- |
| 03/20/2026 | PA2 | PDF |
| 02/13/2026 | PA1 | PDF |

| Date | Version | Documents |
| --- | --- | --- |
| 03/13/2026 | First Revised Fiscal Note | PDF |
| 01/22/2026 | Initial Fiscal Note | PDF |

| Activity | Vote | Documents |
| --- | --- | --- |
| Refer House Bill 26-1034, as amended, to the Committee of the Whole and with a recommendation that it be placed on the consent calendar. | The motion passed on a vote of 7-0. | Vote summary |
Committee Report: PDF
| Activity | Vote | Documents |
| --- | --- | --- |
| Adopt amendment L.001 | The motion passed without objection. | Vote summary |
| Refer House Bill 26-1034, as amended, to the Committee of the Whole. | The motion passed on a vote of 13-0. | Vote summary |
Hearing Summary | Committee Report: PDF
| Date | Calendar | Motion | Vote | Vote Document |
| --- | --- | --- | --- | --- |
| 02/23/2026 | Third Reading | BILL | 59 AYE 1 NO 5 OTHER | Vote record |

| Date | Amendment Number | Committee/ Floor Hearing | Status | Documents |
| --- | --- | --- | --- | --- |
| 03/19/2026 | L.002 | SEN Agriculture & Natural Resources | Passed [] | PDF |
| 02/12/2026 | L.001 | HOU Agriculture, Water & Natural Resources | Passed [] | PDF |
* Amendments passed in committee are not incorporated into the measure unless adopted by the full House or Senate.

** The status of Second Reading amendments may be subsequently affected by the adoption of an amendment to the Committee of the Whole Report. Refer to the House or Senate Journal for additional information.

| Date | Location | Action |
| --- | --- | --- |
| 03/24/2026 | Senate | Senate Second Reading Passed with Amendments - Committee |
| 03/19/2026 | Senate | Senate Committee on Agriculture & Natural Resources Refer Amended - Consent Calendar to Senate Committee of the Whole |
| 03/12/2026 | Senate | Introduced In Senate - Assigned to Agriculture & Natural Resources |
| 02/23/2026 | House | House Third Reading Passed - No Amendments |
| 02/20/2026 | House | House Third Reading Laid Over Daily - No Amendments |
| 02/19/2026 | House | House Second Reading Special Order - Passed with Amendments - Committee |
| 02/18/2026 | House | House Second Reading Laid Over Daily - No Amendments |
| 02/12/2026 | House | House Committee on Agriculture, Water & Natural Resources Refer Amended to House Committee of the Whole |
| 01/14/2026 | House | Introduced In House - Assigned to Agriculture, Water & Natural Resources |
Prime Sponsor

Rep. D. Johnson | Rep. M. Lukens

Sen. N. Hinrichsen | Sen. R. Pelton

Sponsor

(None) Co-Sponsor