Backflow Tester List

State rules

Vermont

Vermont’s Water Supply Rule, adopted by the Department of Environmental Conservation, includes Subchapter 21-8 on cross-connection control and a distribution-system section on cross-connections and interconnections. The rule defines a cross-connection as any actual or potential connection between the public water supply and a source of contamination or pollution. The Drinking Water and Groundwater Protection Division publishes the rule. The text reviewed does not create a named state backflow-tester license and does not say the Department accepts an ASSE, ABPA, or AWWA personal credential. Public water systems still have to operate under the rule, and a customer should ask the system what protection and what tester it requires.

Checked against official sources on October 11, 2026. Rules and links change; confirm with the office listed before you act.

Try a ZIP like 30303, “Travis County” or “Columbus, OH”
Drinking-water agency
The Vermont Department of Environmental Conservation Drinking Water and Groundwater Protection Division publishes the Water Supply Rule, including cross-connection control.
Who may test an assembly
The Water Supply Rule passages reviewed require cross-connection control and do not license testers. The public water system identifies who may test.
Official program page
Official page →

The rule’s table of contents places cross-connection control with operation, reporting, and public notification, which shows it is part of running a public water system rather than a separate occupational-license chapter. The distribution section sits beside water-main separation, surface-water crossings, and water-loading stations. Those are design and operation topics. They tell a system how to keep contaminated sources off the potable system. They are not a field-test procedure, and this record does not turn them into one.

EPA’s 2003 Cross-Connection Control Manual remains the federal educational document for health officials and waterworks personnel. It does not add a Vermont tester card. EPA’s primacy page explains that states with an approved program enforce the public-water-system rules. Vermont’s drinking-water program is the state office that published the Water Supply Rule used here. A property owner who needs a test should start with the water system identified in that program, not with a national card the Vermont rule text does not name.

No roster, fee, or tester exam was found in the Water Supply Rule passages reviewed, so none is stated. If the water system’s ordinance names a credential, that local rule sits on top of the state rule. Ask for it in writing before you hire. Subchapter 21-8 is the cross-connection portion of the Water Supply Rule, and the rule’s definition still decides whether a connection must be controlled.

Official resources in Vermont

Vermont Water Supply Rule

Includes Subchapter 21-8, Cross Connection Control, and the rule’s definition of a cross-connection.

EPA Cross-Connection Control Manual

Federal educational manual. It is not a Vermont tester license.

EPA primacy page

Explains state enforcement of public-water-system standards.

Key facts for Vermont

What to do next

  1. Ask the water system what credential it accepts; the rule passages reviewed do not name one.
  2. Ask whether the connection is treated as a cross-connection under the Water Supply Rule definition.
  3. Do not assume a card from another state is enough.
  4. Get the system’s tester requirement in writing before you pay for a test.

Looking for your city or county in Vermont?

We haven't found official program-level pages for Vermont we can verify yet, so we don't show local numbers here rather than guess. Here's what to use instead, in order:

  1. General Start with the statewide information above. It applies across Vermont, but cities and counties can add their own steps, fees or deadlines.
  2. Call to confirm Ask the official office. They have the current local rule, fee and form.
    Vermont Water Supply Rule
    Website →
    Phone not shown: use the contact page on the official website above.
    Your city or county office: Local governments →
    Not sure who handles it locally? USAGov's free help line, 1-844-872-4681, or the Vermont page on USA.gov can point you to the right office.
  3. Know the current info? Tell us and include a link to the official page. We check every tip before it goes up.

Helpful guides

Backflow tester planner →

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