Missouri State Register

10 CSR 10-6.255 — Chemical Accident Prevention for Agricultural Anhydrous Ammonia

Jun 1, 2026

10 CSR 10-6.250 — Asbestos Projects—Certification, Accreditation and Business Exemption Requirements

Jun 1, 2026

10 CSR 10-6.241 — Asbestos Projects—Registration, Abatement, Notification, Inspection, Demolition, and Performance Requirements

Jun 1, 2026

10 CSR 10-6.110 — Reporting Emission Data, Emission Fees, and Process Information

Jun 1, 2026

10 CSR 10-6.065 — 10 CSR 10-6.065

Jun 1, 2026

10 CSR 10-6.062 — Construction Permits By Rule

Jun 1, 2026

10 CSR 10-6.060 — Construction Permits Required

Jun 1, 2026

10 CSR 10-6.025 — Fees

Jun 1, 2026

10 CSR 23-2.020 — Certification and Registration. The department is amending section (1) and removing sections (3) and (4)

Jun 1, 2026

10 CSR 23-1.090 — Permits. The department is amending subsections (1)(A), (1)(F), and (2)(D)

Jun 1, 2026

10 CSR 23-1.010 — Definitions. The department is amending subsection (3)(G)

Jun 1, 2026

10 CSR 10-6.080 — Emission Standards for Hazardous Air Pollutants. The commission is amending subsection (3)(A). If the commission adopts this rule action, the department intends to advise the U.S. Environmental Protection Agency Proposed Rules April 15, 202

Apr 15, 2026

10 CSR 10-6.075 — Maximum Achievable Control Technology Regulations. The commission is amending subsection (3)(A) andsubsection(3)(B).Ifthecommissionadoptsthisruleaction, the department intends to advise the U.S. Environmental Protection Agency that we will

Apr 15, 2026

10 CSR 10-6.070 — New Source Performance Regulations. The commission is amending subsection (3)(A) and subsection (3) (B). If the commission adopts this rule action, the department intends to advise the U.S. Environmental Protection Agency that we will accep

Apr 15, 2026

10 CSR 23-2.010 — Fee Structure. The department is amending section (1)

Feb 17, 2026

11 CSR 85-1.050 — 11 CSR 85-1.050

Jan 15, 2026

10 CSR 20-6.200 — Storm Water Regulations

Jan 15, 2026

10 CSR 20-6.060 — Water Quality Certification

Jan 15, 2026

10 CSR 20-6.020 — 10 CSR 20-6.020

Jan 15, 2026

10 CSR 20-8.200 — (7). The permits for these facilities require that the facility have capacity to hold for a minimum number of days and if there is not sufficient freeboard in the earthen basin or if the precipitation amount increases, additional fields or

Jan 15, 2026

10 CSR 20-6.015 — 10 CSR 20-6.015

Jan 15, 2026

10 CSR 20-6.015 — are required until all waste, wastewater, wastewater solids/sludges, and any solid wastes have been [disposed of] properly handled in accordance with the closure plan approved by the department under subsection

Jan 2, 2026

10 CSR 20-8.110 — (6). Pilot project installations are temporary and coordinated to ensure water quality is protected. 2. A demonstration project installation is a full-scale innovative technology process. All antidegradation, operating permit, and construct

Jan 2, 2026

10 CSR 20-6.010 — Construction and Operating Permits. The division is amending sections (1)–(13) and (15)

Jan 2, 2026

10 CSR 10-6.255 — Chemical Accident Prevention for Agricultural Anhydrous Ammonia. The commission is amending section (3). The evidence supporting the need for this proposed rulemaking is available for viewing at the Missouri Department of Natural Resources’

Dec 15, 2025

10 CSR 10-6.250 — Asbestos Projects—Certification, Accreditation and Business Exemption Requirements. The commission is amending sections (2) and (3). The evidence supporting the need for this proposed rulemaking is available for viewing at the Missouri Depa

Dec 15, 2025

10 CSR 10-6.020 — 10 CSR 10-6.020

Dec 15, 2025

10 CSR 10-6.065 — Operating Permits. The commission is amending section (2) and subsections (1)(B), (4)(B), and (5)(B). If thecommissionadoptsthisruleaction,thedepartmentintends to submit this rule amendment to the U.S. Environmental Protection Agency to rep

Dec 15, 2025

10 CSR 10-6.062 — Construction Permits By Rule. The commission is amending the purpose and subsection (3)(A). If thecommissionadoptsthisruleaction,thedepartmentintends to submit this rule amendment to the U.S. Environmental Protection Agency to replace the c

Dec 15, 2025

10 CSR 10-6.060 — Section Reference Filing Fee Processing

Dec 15, 2025

10 CSR 10-6.025 — Fees. This proposed new rule compiles all the permitting, emission, agricultural anhydrous ammonia, and asbestos fees from rules found in 10 CSR 10 Chapter 6 into a single fee rule. Compiling these fees into a single rulemaking will allow f

Dec 15, 2025

10 CSR 10-6.140 — Restriction of Emissions Credit for Reduced Pollutant Concentrations From the Use of Dispersion Techniques

Dec 1, 2025

10 CSR 10-6.061 — Construction Permit Exemptions

Dec 1, 2025

10 CSR 90-2.030 — Camping and Recreational Activities

Nov 3, 2025

10 CSR 20-6.010 — (4), provided that the storm water does not come in contact with process waste, process wastewater, or significant materials, and the storm water is not a significant contributor of pollutants; 11. Phase II municipal separate storm sewer sy

Aug 15, 2025

10 CSR 20-6.200 — Storm Water Regulations. The department is amending sections (1)–(3) and (5)–(7)

Aug 15, 2025

10 CSR 20-6.020 — . 3. The department may establish a general permit for a category of similar facilities in accordance with 10 CSR 20- 6.010(13). 4. Noncontiguous land application sites may be included in

Aug 15, 2025

10 CSR 20-6.015 — No-Discharge [Permits] Operations and Land Application Requirements. The department is removing forms, amending the title of the rule, the purpose, and sections (1)–(3) and (8), adding new sections (4) and (5)–(7), deleting section (4), and

Aug 15, 2025

10 CSR 20-2.010 — Definitions. The department is adding new sections (8), (9), (15), (16), (18), (19), (33), (37), (41), (48), (61)–(63),

Aug 15, 2025

10 CSR 25-13.010 — Polychlorinated Biphenyls

Aug 1, 2025

10 CSR 1-3.010 — . 4. Reserved. 5. Modification, total modification, or revocation of permits. A.Permitsmaybemodifiedinpartorintotal,orrevoked,

Aug 1, 2025

10 CSR 25-7.270 — (2)(B)1., and 10 CSR 25-7.270. B. Reserved. C. The department shall review for completeness every permit application. Each permit application submitted by a new facility should be reviewed for completeness by the

Aug 1, 2025

10 CSR 25-8.124 — 10 CSR 25-8.124

Aug 1, 2025

10 CSR 25-6.263 — 10 CSR 25-6.263

Aug 1, 2025

10 CSR 10-6.070 — New Source Performance Regulations

Aug 1, 2025

10 CSR 10-6.080 — Emission Standards for Hazardous Air Pollutants

Aug 1, 2025

10 CSR 10-6.075 — Maximum Achievable Control Technology Regulations

Aug 1, 2025

10 CSR 90-2.030 — Camping and Recreational Activities. The department is amending section (11) and subsection (16)(B)

Jul 1, 2025

10 CSR 10-6.140 — Restriction of Emissions Credit for Reduced Pollutant Concentrations From the Use of Dispersion Techniques. This rule implemented the provisions of federal regulations which restrict credit in the calculation of emission limitations for red

Jun 16, 2025

10 CSR 10-6.060 — . Recordkeeping shall begin on the date of the construction or modification. The exemptions shall be documented [as follows:] by maintaining records or documentation to prove that the criteria described in subsection (4)(A) and either subse

Jun 16, 2025