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The regulations that govern the Department of Natural Resources and Environmental Control (DNREC) are published by the
Office of the Registrar of Regulations
as part of the
Delaware Administrative Code
DNREC Regulations by Division
DNREC follows an
internal regulatory development process
to ensure full communication, openness and predictability in developing, adopting, amending, and/or repealing regulations. It follows all legal and programmatic requirements.
Regulatory changes begin with a Start Action Notice (SAN) which lists the type and purpose of the proposed change, the statutory basis for the action, affected stakeholders, schedules and more information.
Proposed changes are published in the monthly
Register of Regulations
and as
DNREC public notices
in statewide newspapers. DNREC public meetings and events, including
Public Hearings
, are published on the
DNREC calendar of events
. Meetings subject to the state open meetings law are also published on the state
Public Meeting Calendar
Regulations Under Development
The
Division of Air Quality
and the
Division of Waste and Hazardous Substances
both maintain web pages that provide more detail on proposed regulatory changes.
Active Start Action Notices
SAN 2026-03
Proposed amendments to the
Emission Banking and Trading Program
7 DE Admin. 1134
SAN 2026-02
Proposed amendments to the
CO
Budget Trading Program
7 DE Admin. Code 1147
Key Stakeholders Meeting:
March 26, 2026
SAN 2026-01
Proposed new regulation:
Fenceline Air Monitoring for Petroleum Refineries and other Applicable Sources
(7 DE Admin. Code 1154)
SAN 2025-15
Proposed new regulation:
Total Length
(7 DE Admin. Code 3560) that would provide a detailed definition of total fish length.
Public Hearing:
March 25, 2026
Register Publication:
29 DE Reg. 755
(03/01/25) (Prop.)
SAN-2025-14
To amend the
Regulation Governing Beach Protection and the Use of Beaches
7 DE Admin. Code 5102
).
SAN 2025-13
Proposed new regulation:
Licensing for Regulated Professions and Occupations
(7 DE Admin. Code 7800)
SAN 2025-12
To amend the
Regulations for Governing the Design, Installation and Operation of On-Site Wastewater Treatment and Disposal Systems
7 DE Admin. Code 7101
SAN 2025-11
To repeal the
Regulations for Licensing Water Well Contractors, Pump Installer Contractors, Well Drillers, Well Drivers and Pump Installers
7 DE Admin. Code 7302
SAN 2025-10
To repeal the
Regulations for Licensing Operators or Wastewater Facilities
7 DE Adm
n. Code 7204
SAN 2025-09
To amend the
Regulations Governing State Parks
7 DE Admin. Code 9201
SAN 2025-04
To update the
Regulations for State Energy Conservation Code
7 DE Admin. Code 2101
Public Hearing:
July 22, 2025
Register Publication:
29 DE Reg. 875
(4/01/26) (Final.)
SAN 2025-02
To amend the
Accidental Release Prevention Regulation
7 DE Admin. Code 1201
Related Federal Mandate:
Chemical Accident Prevention Provisions
(40 CFR Part 68)
Jan. 13, 2017 Rule Change
Dec. 19, 2019 Rule Change
March 11, 2024 Rule Change
SAN 2025-01
To amend the
Aboveground Storage Tanks
regulations (
7 DE Admin. Code 1352
SAN 2024-17
To amend the
Reporting of a Discharge of a Pollutant or Air Contaminant
regulations (
7 DE Admin. Code 1203
Public Hearing:
Feb. 25, 2026
Register Publication:
29 DE Reg. 678
(2/01/26) (Prop.)
SAN 2024-16
Proposed new regulation:
Issuance of Waivers of Net Metering Limits for Farm Customers
(7 DE Admin. Code 2106)
SAN 2024-08
Proposed new regulation:
Performance Standards for Oil and Natural Gas Sector
(7 DE Admin. Code 1152)
Related Federal Mandate:
Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
(89 FR 16820)
SAN 2024-07
To amend the
Boiler Safety Regulations For Boilers, Pressure Vessels, and Nuclear
regulations (
7 DE Admin. Code 1353
SAN 2024-05
To amend the
Control of Nitrogen Oxides Emissions
regulations (
7 DE Admin. Code 1112
Related Federal Mandate:
2015 Ozone NAAQS, Reclassification of Areas Classified as Marginal. EPA Final Rule
(87 FR 60897 (October 7, 2022))
SAN 2024-04
Proposed new regulation:
Regulations Governing Screening and Reporting Level Tables
(7 DE Admin. Code 1376)
SAN 2024-03
To amend the
Underground Storage Tank Systems
regulations (
7 DE Admin. Code 1351
).
SAN 2024-01
To amend the
Ambient Air Quality Standards
7 DE Admin. Code 1103
Related Federal Mandate:
National Ambient Air Quality Standards for Ozone
(62 FR 38856 (July 18, 1997))
SAN 2023-06
To amend the
Regulations Governing Hazardous Substance Cleanup
7 DE Admin. Code 1375
SAN 2023-02
To amend the
Regulations Governing Hazardous Waste
7 DE Admin. Code 1302
Related Federal Mandate: 42 USC 6926:
Authorized State hazardous waste programs
and 40 CFR Part 271:
Requirements For Authorization of State Hazardous Waste Programs
SAN 2018-16
To amend the
Regulations Governing Solid Waste
7 DE Admin. Code 1301
Public Hearing:
Jan. 6, 2026
Register Publication:
29 DE Reg. 504
(12/01/25) (Prop.)
Related Topics:
divisions
permitting and regulation
programs
public notice
regulations
SAN
start action notice
Office of the Secretary
Division of Air Quality
Division of Waste and Hazardous Substances
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