What Does "Never Remediated" Mean?

In Massachusetts, "remediated" is a regulatory word, not a marketing one. It means a batch failed a required contaminant test and was treated so it could be tested again. "Never remediated" means the flower you are buying did not take that path.

You do not have to take a brand's word for it. Since June 16, 2025, producers have had to disclose sanitization and remediation to the testing lab, and the lab can print that disclosure on the cover of the Certificate of Analysis (COA). This page covers what the rules say, the difference between remediation and sanitization, and where to look on the COA.

What remediation means under Massachusetts rules

Under the testing rule, a batch that fails a contaminant test must be reanalyzed, remediated or disposed of:(CMR testing rule)

• Reanalysis. A sample from the same batch goes back to the lab that failed it. If it passes, a second, different lab has to confirm the result.
• Remediation. The batch is treated for the contaminant and a new sample goes in for a full-panel test. A failing batch can be remediated at most twice.
• Disposal. The batch is destroyed.

A Marijuana Establishment must dispose of a batch that fails a test after the second remediation attempt, and the batch may not be sold, transferred or otherwise dispensed to Consumers, Patients or Licensees(CMR testing rule).

Sanitization is the other treatment

The Commission treats remediation and sanitization separately. Remediation comes after a failed test. A sanitization treatment comes before compliance testing and is, in the words of the Commission, "intended to minimize microbiological contaminants." Its guidance names irradiation and ozone treatment as examples of treatments that must be disclosed(CCC FAQ on order).

That is why "never remediated" is only half the answer. A batch that was irradiated before its first test and then passed was never remediated, and the phrase is true of it. If you want flower that was not treated at all, you need both answers: no remediation and no sanitization.

Where to look on a COA

Under the Commission order on test disclosure, disclosing a treatment is the producer's responsibility, and the lab reports what the producer disclosed. The FAQ puts it plainly: "The ITL can only report the representation of the sample made by the originating Licensee." Per the Commission, the lab can enter the disclosure on the cover page of the COA where the sample properties are described(CCC FAQ on order).

Lab templates differ. On a Massachusetts flower COA you will usually see one of these:

• Two boxes labelled Sanitization and Remediation next to the sample ID, checked or left blank.
• Two lines reading Sanitized and Remediated, each answered Yes or No.
• No field at all. Some lab templates do not print it, and then the COA alone cannot answer the question. Ask the store or the brand.

Then read the contaminant results: heavy metals, mycotoxins, pesticides and microbials. A Pass tells you the tested sample cleared the state's limits. The sanitization and remediation lines tell you whether anything was done to the batch to get there.

What AC's published COAs show

Advanced Cultivators grows indoors in Lowell under cultivation licence MC283314 and publishes the full COA PDF for each cultivar on its COA index. As of September 23, 2026 the index links 12 of them.

Eight of the 12 carry the disclosure, and all eight read the same way: nothing sanitized, nothing remediated. Three from Assured Testing Laboratories leave both boxes blank. Five from G7 Laboratories print "Sanitized: No" and "Remediated: No." The other four come from a lab whose template does not print the field, so for those batches the COA alone does not answer the question.

One worked example. The D2P COA (sample 2603AST0084-0930, harvested February 26, 2026, reported March 19, 2026) leaves the Sanitization and Remediation boxes blank and passes heavy metals, mycotoxins, pesticides and microbials.

That is as far as the record goes: the published COAs, not a promise about every batch ever grown. Ask for the COA that matches the jar in your hand. The batch beats the brand story every time.

Check a jar yourself

• Ask for the COA that matches the batch or package tag on the jar.
• Find Sanitization and Remediation on the cover page. Blank boxes or "No" mean no treatment was disclosed. A check or "Yes" means one was.
• Read the contaminant rows: heavy metals, mycotoxins, pesticides, microbials. Look for Pass, not just a THC figure.
• Read the harvest and test dates. They are handling facts, not effect promises.
• If a store cannot produce the COA for the batch in front of you, treat that as the answer.

Quick answers

Is irradiated cannabis remediated?

It depends on when. Irradiation after a failed test is remediation. Irradiation before the first compliance test is what the Commission calls sanitization. Either way it has to be disclosed to the lab.

Does never remediated mean untreated?

Not on its own. A batch can be sanitized before testing and still never be remediated. Check both lines on the COA.

What does "no remediation" mean?

It means the certificate shows no remediation for the batch: the Remediation line reads No or is left blank. Remediation is the treatment a batch gets after it fails a contaminant test, so "no remediation" says the batch did not take that path. It does not say whether the batch was sanitized before its first test, so read the Sanitization line too.

Where on the COA is remediation listed?

On the cover page, near the sample ID and the sample description. Some lab templates print two boxes, some print Yes or No lines, and some print nothing, in which case the COA alone cannot answer the question and you should ask the store or the brand.

Is remediated cannabis unsafe?

A remediated batch that passes its full-panel retest met the same state contaminant limits as any other passing batch. Remediation is a disclosure question, not a pass or fail one. The COA tells you which one you are holding.

Where do I find the COA?

Ask the store for the COA that matches the batch on the jar, or look for it on the brand's site. AC's are on its COA index.

Keep reading

• COA library: the lab report for each AC strain
• How to tell if weed is stale or bad
• All AC strains
• Where to buy AC
• Advanced Dispensary, Peabody
• Medical card guide for Massachusetts patients

Sources

• 935 CMR 500.160(13): reanalysis with a Second Confirmatory Test at a different lab, remediation (at most two attempts), or disposal after a contaminant fail.
• Cannabis Control Commission, FAQ on Administrative Order No. 5 (June 13, 2025; effective June 16, 2025): sanitization treatment defined, disclosure is the licensee's responsibility, the lab reports what the licensee disclosed and can enter it on the COA cover page, irradiation and ozone named as examples.
• Cannabis Control Commission, "Cannabis Control Commission Issues New Order On Testing Methods" (June 17, 2025).
• Advanced Cultivators COA index (advancedcultivatorsllc.com/coa-index): the 12 linked COA PDFs, read September 23, 2026.

What this page is not

This is education about a process word, not medical advice. A Pass on a COA is a lab result, not a health claim.

ADULTS 21+ · EDUCATION ONLY, NOT MEDICAL ADVICE. Effects and risks vary by person, product, dose, and method. Do not drive after use. Ask a qualified clinician about health concerns or drug interactions.

Last checked against the cited Commission rules and AC's published COAs on November 5, 2026.