Dental Certification Forms, Instructions, and Filing Schedule

Before you file - what you MUST know

You must have installed an amalgam separator before you can file your certification form.
If your facility's ownership, tax identification number, affiliation, or practice name has changed since you last filed, please contact MassDEP to request correction to your database record before filing a certification form.
Before starting your online certification, gather the following information:
- Your facility number and your RO account number (contact MassDEP if you don't know them).
- Amalgam Separator make(s) and model(s), and date(s) of installation; see Approved Amalgam Separators
- Credit card number for payment of the $400 filing fee (accompanies certification form every five years)
- Waste amalgam transporter name and phone number
- Facility receiving your amalgam waste for recycling, address, and phone number. See Approved Amalgam Recyclers
- Determine if you discharge wastewater to a public sewer.
- Gather your maintenance records and manufacture's maintenance requierements.
You can Contact MassDEP if you need assistance.

IMPORTANT -- Dental facilities that filed their certification in 2007 must file their renewal certification by June 15, 2012.
New dental practices and those that expand beyond the capacity of their existing amalgam separator(s) must install new amalgam separator equipment before the new/expanded facility starts operating, and must file initial certifications with MassDEP within 60 days of startup.
After initial certifications are filed with MassDEP, follow-up certifications are required every five years (generally by June 15 of the year they are due).
If you believe your practice is exempt from the regulation, you must still file a one-time certification to establish your exempt status. Exempt practices do not need to refile after 5 years. A facility is exempt if it does not generate or discharge waste water from amalgam-related processes (such as tooth extraction) -- see the online certification form for details.

Download the instructions below, then either print them for reference or keep the instructions window open and refer back to it as you proceed.
MS Word 631 KB | PDF 512 KB

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For easy online filing use eDEP, MassDEP's electronic filing system. Go to

If you need help with the online Certification forms or with name changes or other filing issues, you may contact:

Dental program e-mail box:
dental.mercury@state.ma.us

David Biggers
617-292-5787

Ed Weatherhead
617-654-6579

Anne Brown
617-292-5880