Code of Massachusetts Regulations 330 CMR - DEPARTMENT OF AGRICULTURAL RESOURCES

26 Jun 2025 --
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1. What 330 CMR Is and Why It Matters

330 CMR is the section of the Code of Massachusetts Regulations that contains rules issued by the Massachusetts Department of Agricultural Resources (MDAR). These regulations are administrative law, meaning they are not statutes passed by the Legislature, but rules created under authority granted by statutes (primarily M.G.L. c. 128 and related chapters).

Courts treat 330 CMR as legally binding, so long as:

MDAR acted within its statutory authority

Proper rulemaking procedures were followed

The regulation is reasonable and not arbitrary or capricious

2. Major Subject Areas Covered by 330 CMR

A. Pesticide Control

Includes:

Licensing of pesticide applicators

Restrictions on pesticide use

Enforcement and penalties

Purpose: Protect public health, agriculture, and the environment.

B. Plant and Animal Health

Includes:

Quarantine regulations

Disease control (livestock, poultry, bees)

Importation restrictions

Purpose: Prevent spread of invasive species and animal disease.

C. Food Safety and Markets

Includes:

Milk and dairy regulation

Farm product standards

Enforcement against adulterated or misbranded products

D. Weights and Measures

Includes:

Inspection of commercial scales

Accuracy of fuel pumps and pricing devices

3. Legal Authority Behind 330 CMR

Massachusetts courts consistently hold that MDAR may issue regulations when:

The Legislature has delegated authority

The regulation aligns with the statute’s purpose

Courts apply administrative law principles, including:

Deference to agency expertise

Review for reasonableness

Review for procedural compliance

4. How Massachusetts Courts Treat 330 CMR (Case Law Principles)

A. Deference to MDAR’s Expertise

Massachusetts courts generally give substantial deference to MDAR’s interpretation of statutes related to agriculture and public health.

Key principle:
If a regulation is ambiguous but reasonable, courts will usually uphold it.

This follows the long-standing rule that agencies with technical expertise (like agriculture, pesticides, or disease control) are better suited than courts to make detailed policy judgments.

B. Enforcement Actions and Due Process

Courts have upheld MDAR enforcement actions under 330 CMR when:

Regulated parties had notice of the rules

Penalties were authorized by statute

Hearings or appeal rights were provided

However, courts have invalidated or limited enforcement when:

MDAR exceeded its statutory authority

Penalties were imposed without required procedures

Example principle from case law:
Administrative penalties must be clearly authorized by statute, even if the regulation itself is valid.

C. Pesticide Regulation Cases

In cases involving pesticide licensing and misuse:

Courts have upheld MDAR’s authority to suspend or revoke licenses

Courts have accepted MDAR’s scientific determinations about environmental or health risks

Courts reject arguments that:

Compliance is optional

Federal pesticide law completely preempts state regulation
(Massachusetts is allowed to impose stricter controls)

D. Quarantine and Disease Control Cases

Courts have historically upheld:

Animal quarantines

Destruction of diseased livestock

Movement restrictions on plants or animals

As long as:

The action is tied to preventing disease

Compensation rules (if any) in statutes are followed

Courts recognize these powers as part of the Commonwealth’s police power to protect public health and agriculture.

5. Limits on MDAR’s Power Under 330 CMR

Massachusetts courts have made clear that MDAR cannot:

Create criminal penalties without legislative authorization

Regulate beyond the scope of agriculture-related statutes

Ignore procedural requirements under the Administrative Procedure Act

If MDAR issues a regulation that:

Conflicts with a statute

Is irrational or unsupported

Was adopted without notice and comment

Courts may strike it down.

6. Relationship Between 330 CMR and Statutes

Courts emphasize:

Statutes control over regulations

Regulations must implement, not rewrite, statutes

When a conflict exists:

The statute prevails

The regulation is invalid to the extent of the conflict

7. Practical Legal Effect of 330 CMR

In real cases, 330 CMR is used to:

Justify license suspensions

Support fines and administrative penalties

Establish standards of care in civil lawsuits

Prove regulatory violations in enforcement proceedings

Violations of 330 CMR can be used as evidence of negligence in civil cases, even if the regulation itself does not create a private right of action.