Regulation

Regulation  310 CMR 10.00: Wetlands Protection Act Regulations

These regulations establish procedures for conservation commissions and MassDEP to follow in issuing permits for work in areas protected under the Wetlands Protection Act.

Current Regulations

These regulations, 310 CMR 10.00, became effective as of October 24, 2014.

Note: This is an unofficial version of Commonwealth regulations and is posted here for the convenience of the public. It is not an official statement of the regulations.

Proposed Wetlands Ecological Restoration Streamlining Regulations - July 16, 2026

MassDEP is proposing amendments to the Wetlands regulations (310 CMR 10.00: Wetlands Protection) and the Water Quality Regulations (314 CMR 9.00: 401 Water Quality Certification for Discharge of Dredged or Fill Material, Dredging, and Dredging Material Disposal in Waters of the United States within the Commonwealth) to streamline permitting for wetland restoration projects. These amendments will support goals described in both the Executive Office of Energy and Environmental Affairs Clean Energy and Climate Plan and the Executive Order for Biodiversity Conservation in Massachusetts.

The amendments are intended primarily to streamline permitting for beneficial wetland restoration and other projects, including invasive plant management, damaged tree removal, and limited maintenance and construction of unpaved paths.  In addition, the proposed amendments will update the wetland plant list and bordering vegetated wetlands boundary determination methodology, as well as revise the observation of flow requirements in the riverfront area. Additional amendments under 314 CMR 9.00 include streamlining ecological restoration limited projects and utility maintenance projects that require a variance for construction mats.

Public Information Session

The Massachusetts Department of Environmental Protection (MassDEP) held a public information session on Wednesday, July 29, 2026from 12:00pm-1:00pm to provide information and answer questions on the draft regulations. 

Slides: Ecological Restoration Streamlining Regulations Information Session

Public Hearings

MassDEP will hold two virtual public hearings via Zoom at the following dates and times to receive comments on the proposed changes. Advance registration is required. These meetings will be recorded and posted on this website.

Public Notice: English | 中文(繁體) | ភាសាខ្មែរ | Tiếng Việt | Português | Español | Kreyòl Ayisyen

Monday, August 10, 2026 at 1:00 PM: Register via Zoom
Monday, August 10, 2026 at 6:00 PM: Register via Zoom

How to Submit Public Comments

The public comment period ends August 20, 2026 at 5pm
Written comments can be submitted to: Lisa Rhodes, Attn: Wetlands-401 Ecological Restoration Comments, MassDEP-BWR, 100 Cambridge Street, Suite 900, Boston, MA  02114]. 
Electronic format comments should be sent to: dep.wetlands@mass.gov and include ‘Wetlands-401 Ecological Restoration Comments’ in the subject line. 

Proposed Revisions

Proposed Wetlands Resilience 1.0 Draft Regulations - December 22, 2023

MassDEP is proposing revisions to the Wetlands regulations and corresponding revisions to the 401WQC regulations to improve the Commonwealth’s resilience to impacts of climate change. Following Information Sessions and Public Hearings, MassDEP added Office Hour Sessions for stakeholder Q&A and extended the Public Comment period from March 1 to April 30, 2024.

July 2026 Update: The proposed draft Wetlands and Waterways Regulations and the Stormwater Handbook are moving forward, with an expectation to promulgate Final Regulations in 2026. Once the Wetlands Resilience 1.0 regulations are promulgated, the MassDEP Wetlands Team is ready to implement plans for a robust training program on the updates to the regulations and the Stormwater Handbook both in-person and virtually throughout the state.  The trainings will also cover the updated Stormwater Checklist. MassDEP will update this webpage periodically.

Public Notice: English | Español | 中文 | 中文(繁體) | Kreyòl Ayisyen | ភាសាខ្មែរ | Português | Tiếng Việt

Revised Public Notice: English | Español | 中文 | 中文(繁體) | Kreyòl Ayisyen | ភាសាខ្មែរ | Português | Tiếng Việt

Public Information Sessions and Public Hearings

MassDEP conducted three virtual public information sessions:

  • Thursday, January 18, 2024 at 1:00 PM. Recording available on YouTube.
  • Thursday, January 18, 2024 at 6:00 PM. Recording available on YouTube.
  • Tuesday, January 23, 2024 at 1:00 PM. Recording available on YouTube.
  • Presentations available here: Stormwater | Coastal

Public Comment Period and How to Submit Public Comments

MassDEP conducted three virtual public hearings:

  • Wednesday, January 31, 2024 at 1:00 PM. Recording available on YouTube.
  • Wednesday, January 31, 2024 at 6:00 PM. Recording available on YouTube.
  • Thursday, February 1, 2024 at 1:00 PM. Recording available on YouTube.

MassDEP held a public comment period from March 1 to April 30, 2024 – a 60-day extension. Formal written comments on the draft regulations were accepted until 5:00 PM on April 30, 2024

Wetlands and Waterways Resilience Regulations “Office Hours” Schedule

MassDEP conducted three virtual office hours sessions. These informal Q&A sessions are an opportunity for the public to better understand the proposed revisions and to help develop their formal comments. Stakeholders were encouraged to submit questions about the Wetlands/401WQC regulations, Stormwater Handbook, and/or Waterways regulations in advance of the session(s).

Proposed Revisions

Notice to Reviewers

Public Summary

Stormwater Management Handbook

Stormwater Management Handbook Appendix A Redline

Memo on NOAA14 PLUS

Memo on Recharge Rationale

MassDEP WPA Regs Handout 1 LSCSF Zones

MassDEP WPA Regs Handout 2 Performance Stnd Comparison

MassDEP WPA Regs Handout 3 Flow Path Analysis

Recently Promulgated Amendments

There have been no recent amendments to these regulations.

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