Maine Enterprise Licensing System (MELS) Hub

The MELS Hub is the centralized resource designed for Maine citizens to access information about Maine’s new electronic licensing system.

Sign In or Create an Account

Sign in here or create a new account for applications, permitting, compliance, payments, and more.

Submit a Complaint or Incident

Report a possible violation/incident or make an environmental complaint about direct impacts to protected natural resources.

Site Map Explorer

Use the Explorer mapping tools and advanced-search capabilities to navigate information on environmental sites.

Ask a Question

Contact DEP staff to ask questions about applications, permitting, enforcement actions, and more.

How do I get started?

You DO need an account to...

You do NOT need an account to...

  • Submit incidents (i.e., spills, complaints, or concerns)
  • Search for and access publicly available information
  • Search for and comment on public notices and hearings

What programs does MELS support?

The programs (or portions thereof as indicated) are currently supported in MELS:

User Guides/How To’s

Written resources

MELS Basics

Overboard Discharge Submissions

Land Submissions

Solid Waste Submissions

Video resources

Mobile Device Compatibility

MELS is designed to work best using Microsoft Edge or Google Chrome on a personal computer. We do not recommend accessing it on a mobile phone or tablet as some features of MELS will not work.

If you're experiencing difficulties accessing MELS, please confirm you've completed the following steps before contacting support.

  • You have closed and restarted the browser you are using
  • You have restarted your computer
  • You have an active MELS account and you have completed the verification steps that were emailed to you
  • You have signed in using the correct username and password
  • You checked to see if MELS was working in a different browser (MELS works best in Edge)
  • You are an authorized user for the site that you are trying to access
  • You have selected the appropriate site
  • You are not having issues visiting other maine.gov/dep webpages
  • You have internet access
  • You are accessing MELS within the United States
  • Questions? Contact us at 866-894-2578
Downloads and links
Frequently Asked Questions
Future Program Releases
The expansion to MELS Portal will be released in stages. We will share additional information on this page when new content is available.
  • Oil Conveyance Fees
  • Water Quality
  • Air Quality
  • Current Marine Oil Terminal, Waste Oil Facilities, and Siting & Variance
  • Hazardous Waste
  • Redemption Centers
  • LANS
  • Metallic Mining, Gravel Pits, and MiNSYS/PITS
  • Transporters
  • Contractor Certification
  • Dams and Hydro
  • Tanks
  • eWaste
  • Underground Injection Control and Sand/Salt