Rules in Progress

EFIS File and Link to Missouri Register Description Rule Number Progress Next Action Judge Assigned

WX-2026-0108

Missouri Register, Vol. 50, No. 23, Dec. 1, 2025, pages 1765-1767

Proposed Rule for Appraisal/Acquisition of a Small Water or Sewer Utility to be used by a Large Water or Sewer Utility
(Related to SB4).
  • 20 CSR 4240-10.195
New rule published in Code of State Regulations May 31, 2026, effective June 30, 2026. Completed Dippell

EX-2026-0171

Missouri Register, Vol. 51, Feb. 17, 2026, pages 312-314

Proposed Rule for State Reliability Mechanism (Related to SB4).
  • 20 CSR 4240-23.040
Order of Rulemaking filed with Secretary of State June 29, 2026.

To be published in Missouri Register August 3, 2026;

To be published in the CSR August 31, 2026;

To be effective August 30, 2026.

Dippell

GX-2026-0285

Vol. 51, June 1, 2026, pages 697-709

Proposed Amendments - Gas Safety Rule Updates.
  • 20 CSR 4240-40.020 
  • 20 CSR 4240-40.030
Published in Missouri Register June 1, 2026.

Comments due June 30, 2026;

Hearing July 9, 2026, 10:00 a.m.

Dippell

MX-2026-0286

Missouri Register, Vol. 51, June 1, 2026, pages 709-718

Proposed Amendments – Manufactured Housing (2025 Periodic Rule Review).
  • 20 CSR 4240-120.011 
  • 20 CSR 4240-120.110
  • 20 CSR 4240-123.010 
  • 20 CSR 4240-123.020 
  • 20 CSR 4240-123.030 
  • 20 CSR 4240-123.040
  • 20 CSR 4240-123.090 
  • 20 CSR 4240-124.010
  • 20 CSR 4240-124.020
  • 20 CSR 4240-124.060
  • 20 CSR 4240-125.010
  • 20 CSR 4240-125.040
  • 20 CSR 4240-125.060
  • 20 CSR 4240-126.010
  • 20 CSR 4240-126.020
  • 20 CSR 4240-127.010
Published in Missouri Register June 1, 2026.

Comments due June 30, 2026;

Hearing July 9, 2026, 10:00 a.m.

Dippell
OX-2026-0334 Proposed Amendments and Rescission – Chapter 3 - Utilities (2025 Periodic Rule Review).
  • 20 CSR 4240-3.010
  • 20 CSR 4240-3.030
  • 20 CSR 4240-3.100
  • 20 CSR 4240-3.130
  • 20 CSR 4240-3.135
  • 20 CSR 4240-3.140
  • 20 CSR 4240-3.150
  • 20 CSR 4240-3.155
  • 20 CSR 4240-3.156 (Rescission)
  • 20 CSR 4240-3.162
  • 20 CSR 4240-3.200
  • 20 CSR 4240-3.205
  • 20 CSR 4240-3.230
  • 20 CSR 4240-3.255
  • 20 CSR 4240-3.300
  • 20 CSR 4240-3.400
  • 20 CSR 4240-3.625
Proposed Amendments and Rescission filed with SOS for publication May 28, 2026.

Proposed Amendments and Rescission to be published in Missouri Register on July 1, 2026;

Comments due July 31, 2026;

Hearing August 5, 2026 11:30 a.m.

Dippell
OX-2026-0335 Proposed Amendments – Chapter 4 - Standards of Conduct (2025 Periodic Rule Review).
  • 20 CSR 4240-4.010
  • 20 CSR 4240-4.015
  • 20 CSR 4240-4.017
  • 20 CSR 4240-4.040
Filed with Secretary of State’s Office June 11, 2026.

To be published in Missouri Register on July 15, 2026;

Comments due August 14, 2026;

Hearing August 20, 2026, 10:00 a.m.
 

 
TX-2026-0353 Proposed Amendments – Communications Rules (2025 Periodic Rule Review).
  • 20 CSR 4240-28.012
  • 20 CSR 4240-28.014
  • 20 CSR 4240-29.010
  • 20 CSR 4240-29.020
  • 20 CSR 4240-29.030
  • 20 CSR 4240-29.100
  • 20 CSR 4240-31.016
  • 20 CSR 4240-34.020
  • 20 CSR 4240-34.090
  • 20 CSR 4240-36.020
  • 20 CSR 4240-36.030
  • 20 CSR 4240-36.040
  • 20 CSR 4240-36.050
Filed with Secretary of State’s Office June 11, 2026.

To be published in Missouri Register on July 15, 2026;

Comments due August 14, 2026;

Hearing August 20, 2026, 10:00 a.m.

Dippell
    
Working Groups in which Rulemaking is Being Considered