Which New Terpene Names Can Show Up on a Michigan Lab Sheet?

A Michigan lab sheet can grow nine new terpene names on November 11, and the state still doesn't require the test.

You'll see a new name only if a lab reports it on one of the Metrc batches named in the October 28 bulletin.

By Jamie, grower at Divine Toke. Divine Toke is Sun+Earth Certified.

Which new terpene names can show up on a Michigan lab sheet? #

Starting November 11, 2026, a lab can report nine named terpenes and a Total Terpenes field. The names are Alpha-Myrcene, Borneol, Camphene, Farnesene, Fenchol, Guaiol, Ocimene, Terpineol, and Terpinolene. Those lines come from Metrc bulletin MI_IB_0119, distributed on October 28, 2026.

The bulletin is written to Michigan Metrc users. It says Metrc and the Cannabis Regulatory Agency are adding the names to select test batches. The same page says the names are optionally available, the way named terpenes already in the system are optionally available.

Field the sheet can print	Kind of line
Alpha-Myrcene	Named terpene, its own row
Borneol	Named terpene
Camphene	Named terpene
Farnesene	Named terpene
Fenchol	Named terpene
Guaiol	Named terpene
Ocimene	Named terpene
Terpineol	Named terpene
Terpinolene	Named terpene
Total Terpenes	Aggregate field, not one more molecule

Nine of those are compound names. Total Terpenes is the sum field. Marijuana Herald's October 29, 2026 report and MMJ Daily's October 30, 2026 report both match that list and both call the change optional reporting.

The bulletin doesn't hand you a smell chart, and it doesn't rank the names. If you want the older lesson on how a panel is laid out, units and all, that's the COA reading post. This page is the reporting change.

Names a shopper can mix up on sight #

Terpineol and terpinolene are two different lines. Farnesene is the spelling on the bulletin, so that's the spelling to look for. Alpha-Myrcene is printed with the hyphen and the capital A, as its own name, and it doesn't replace a myrcene row that was already on older sheets.

Guaiol, ocimene, and terpinolene already have their own pages for the chemistry. Use those when you want that, and don't ask this bulletin to do it:

• Guaiol post
• Ocimene post
• Terpinolene post

The indica-label post keeps a terpinolene aside inside a different question. If that's the tab you already have open, it's does an indica label mean sleepy.

Does Michigan require these terpene tests? #

No. The state didn't add a required terpene test on November 11. MI_IB_0119 says the new names are optionally available, same as named terpenes already in Metrc. It also says testing functionality doesn't change.

The safety rule is older than this bulletin. In the compiled Michigan marihuana rules, R 420.1 to R 420.1004, R 420.305(3) tells a lab to run the required safety tests in subdivisions (a) through (i). The history line on that rule is 2020 AACS and 2022 AACS. Terpene names aren't in that list.

R 420.305(18) is the terpene sentence. A lab may run terpene analysis by a method the agency approved, and that method has to be accredited on the same schedule as the required safety tests. "May" is the word in the rule. A blank terpene page doesn't, by itself, mean the batch skipped the safety work.

Check	Where it sits
Potency, including THC and CBD	Required safety test, R 420.305(3)(a)
Foreign matter, including powdery mildew	Required safety test, R 420.305(3)(b)
Microbial screening	Required safety test, R 420.305(3)(c)
Chemical residue, the banned-chemical screen	Required safety test, R 420.305(3)(d)
Heavy metals	Required safety test, R 420.305(3)(e)
Residual solvents	Named for infused products, edibles, and concentrates
Water activity, the free-water number tied to mold risk	Required safety test, R 420.305(3)(g)
Mycotoxins	If the agency asks, R 420.305(3)(h)
Target analytes	If the agency asks, R 420.305(3)(i)
The nine new names and Total Terpenes	Optional reporting on the batches below

The rule also says the agency may publish a guide for which of those safety tests apply when the product changes form. So a flower batch and a cart don't always carry the same required rows. Residual solvents are the example to keep straight. R 420.305(3)(f) names them for production batches of infused products and edible marihuana products, and R 420.305(7) names solvent testing again for concentrates and infused products. Don't look at a flower sheet, see no solvent line, and call that a skipped terpene test. They're different jobs.

The CRA sampling and testing guidance, revised September 23, 2024, version 5.2, tells labs that Metrc and the certificate of analysis should match, aside from testing the agency doesn't require. It gives terpenes as that example. A fail on the safety side is a different conversation, and the failed-test post is where that lives.

The grocery list on the sheet got longer, and the pass-fail boxes stayed put.

Which Metrc test batches can carry the new names? #

The bulletin names seven batches where the new lines are available on November 11, plus a vape group it marks as upcoming with no date. It doesn't say every flower COA in the state will print all nine names that morning.

Test batch in MI_IB_0119	What you might be holding
Additional Dual Chamber Vape - Terpenes (Chamber A)	One chamber of a two-chamber vape
Additional Dual Chamber Vape - Terpenes (Chamber B)	The other chamber
Additional Dual Chamber Vape - Terpenes (Chamber C Combo of A & B)	The combo of A and B
Additional Tests - Terpenes	An added terpene test, not a safety pass-fail
R&D Testing Terpenes (Infused Beverages)	A drink a lab is testing
R&D Testing Terpenes (Infused Products)	An infused product in research testing
R&D Testing Terpenes (Raw Plant Material)	Raw plant, which includes flower
Upcoming: all triple-chamber and four-chamber vape batches	Listed as upcoming, no start date

If you work nights around Detroit and you're comparing two vape sheets before a shift, look for the chamber label before you compare the names. Chamber A and Chamber B are separate reports. Chamber C is the combo. A cart that isn't a dual chamber isn't automatically on this list.

Flower sits closest to the raw-plant batch. A flower sheet can pick up the new names there, or under Additional Tests - Terpenes, when the lab chooses to report them. A sheet from a shop in Marquette uses the same statewide name list as a sheet from Detroit. Metrc is the statewide monitoring system the CRA's Metrc page points licensees to. The bulletin isn't a Detroit-only memo.

Infused beverages and infused products are on the list because those R&D batches are on the list. Those are products a licensed shop can sell.

What "upcoming" means for bigger vapes #

Triple-chamber and four-chamber vape batches are on the bulletin as upcoming. There's no calendar date next to that word. Until a later Metrc note gives a date, a four-chamber cart isn't on the November 11 list.

What does the Total Terpenes field add? #

Total Terpenes is an aggregate field, a single number for the terpenes the lab added up on that report. MI_IB_0119 lists it beside the nine names and calls it an aggregate field. It doesn't say the number measures how strong the high is, and it doesn't set a passing score.

A bigger total isn't a stronger jar. The bulletin never makes that claim, and neither does R 420.305. Strength talk on the package label still runs through THC and CBD, which is a different row. If the total is missing, the lab may have skipped the optional panel, or the software may not be showing the new field yet. That's not a safety fail.

The COA reading post already walks how a total sits next to the named lines, including percent versus mg/g. Use that when the unit is the question. Don't treat a fresh Total Terpenes box as a new grade.

What the field doesn't settle #

• It doesn't tell you the batch passed microbial screening, metals, or chemical residue.
• It doesn't require the shop to print the number on the bag.
• It doesn't mean all nine new names were found. A total can exist next to a short list.
• It doesn't move a cart from Chamber A into Chamber B.

Does the Michigan package have to print the new names? #

No. The required label list for a sales location doesn't include terpene names or Total Terpenes. R 420.504(1), in the same compiled rules file, says the container has to be sealed and labeled before a marihuana sales location sells or transfers it.

The rule's label list includes:

• The producer or cultivator name and state license number
• The package tag from the statewide monitoring system
• The packager, if that's a different licensee
• Harvest date, if it applies, and strain name, if it applies
• Net weight
• THC and CBD as the lab reported them, plus a line that the real value may vary by 10%
• Activation time, the lab that passed the compliance test, and the test date
• The universal symbol and the warnings the rule lists

Terpene names aren't on it. So you can buy a legal jar and never see borneol on the sticker. The lab sheet is where the new names show up, when a lab reports them. A budtender can still pull that sheet. Ask for the report that matches the package tag on the bag in your hand.

A senior comparing two flower jars should start with that tag, before hunting a new word on the label. The sticker can be quiet about terpenes and still carry the THC line the rule actually names. That comparison still happens under Michigan's label rule for a sales location.

What stayed the same in the October 28 bulletin? #

The bulletin adds names a lab can report, and it leaves the Metrc buttons and the testing setup alone. The sentence in MI_IB_0119 is that there are no functional changes to the user interface or to testing functionality. API integrators were told. The note asks licensees to check the third-party software that sits on top of Metrc, so a shop's menu screen and the lab's upload tool can catch up to the new fields.

That's a software conversation for licensees. For you, it means November 11 is the first day the names are available, not a promise that every printout in the state will show them before lunch.

I checked the public CRA bulletins index for a matching terpene advisory. There isn't a second CRA PDF to quote for this change. The Metrc bulletin is the one that says Metrc and the CRA are adding the names. Don't wait on a separate agency press note that this file doesn't point to.

Metrc's bulletin archive is where those PDFs are indexed. MI_IB_0119 is the terpene one. It isn't a recall, and it isn't a new action limit.

What licensees were told to do #

• Read the new names and the batch list.
• Talk to the vendor that connects their system to Metrc.
• Keep using the safety tests the rule already requires.

You don't need a Metrc login to use the shopper half of this. You need the lab sheet that belongs to the package you're buying.

How do you tell Alpha-Myrcene from myrcene? #

Alpha-Myrcene is its own reporting name on the November 11 list, and it isn't a rewrite of the myrcene line. The bulletin spells it Alpha-Myrcene. If a sheet has both, they're two rows. If a sheet has only myrcene, that doesn't mean the lab forgot Alpha-Myrcene. The new name is optional, and older panels weren't built around it.

Don't fold the new row into the old one because they share a word. The bulletin lists them as an addition, not as a rename. I don't have a Divine Toke percent for Alpha-Myrcene, and this post isn't a tour of one of our batches.

Borneol, camphene, fenchol, and terpineol get the same treatment. They're spellings the sheet can now carry. The bulletin stops at the spelling. Guaiol, ocimene, and terpinolene are the three that already have chemistry pages, linked above, so the chemistry stays on those pages and the rule stays here.

What should you do when a new name shows up? #

Match the package tag, read the test-batch name, and keep the safety page separate from the terpene page. A new word on the terpene page doesn't grade the jar.

1. Match the package tag on the sheet to the tag on the bag. The COA reading post is the walkthrough for that match, the units, and the top lines.
2. See whether the report says Chamber A, Chamber B, Chamber C, Additional Tests - Terpenes, or one of the R&D batches.
3. Read Alpha-Myrcene as Alpha-Myrcene. Read terpineol and terpinolene as different words.
4. If the name is guaiol, ocimene, or terpinolene and you want the chemistry, open that post. Don't pull a mood out of the bulletin.
5. Read the safety results on their own page. The pass-or-fail page is the failed-test post. A terpene name doesn't stand in for it.
6. If the name is missing, the batch can still be a normal legal product. Optional means the row can be empty.

A sheet dated before November 11 won't be "behind" because it lacks camphene. The field wasn't on the list yet. A sheet dated after can still lack it, because the lab didn't have to run it.

FAQ #

When do the new terpene fields turn on? #

November 11, 2026, is the effective date on MI_IB_0119. Metrc distributed that bulletin on October 28, 2026. The names aren't back-dated onto older test batches by this note.

If the terpene page is blank, did the batch skip safety testing? #

No. A blank terpene page doesn't show that the required safety tests were skipped. R 420.305(3) is the safety list, and R 420.305(18) says a lab may run terpenes. The sampling guidance already treats terpenes as testing the agency doesn't require.

Will every flower COA list all nine names? #

No. The names are available on select batches, and reporting them is optional. Raw plant material and Additional Tests - Terpenes are the flower-side batches on the bulletin. A lab can report one new name, several, or none.

Do I need the new names on the sticker to buy the jar? #

No. R 420.504(1) doesn't put terpene names on the required package label. THC and CBD are on that label list. Borneol isn't. You can still ask the shop for the lab sheet that matches the package tag.

Can Total Terpenes fail a batch? #

No. The bulletin calls Total Terpenes an aggregate field, and it doesn't publish a pass number. A failed batch is a failed required safety test. Follow that through the failed-test post, not through a terpene total.

Is there a CRA terpene bulletin besides the Metrc PDF? #

No matching terpene advisory showed up on the CRA bulletins page. The Metrc PDF is the note that says the CRA and Metrc are adding the names. Quote that PDF, not a second file that isn't there.

Do four-chamber vapes get these names on November 11? #

Not from this bulletin. Triple-chamber and four-chamber vape batches are marked upcoming, with no date. Dual-chamber carts are the vapes with a November 11 batch name: Chamber A, Chamber B, and Chamber C as the combo.

What if the shop's computer doesn't show the new fields yet? #

The bulletin says API integrators were notified and tells licensees to align third-party software. There's no functional change to Metrc's own screens or to testing. A lag in a shop's add-on software can hide a field the state already made available. Ask for the lab PDF, not just the menu tile.

Does a higher Total Terpenes number mean a stronger high? #

No. Nothing in MI_IB_0119 or in R 420.305 says the total measures the high. THC on the potency test is the potency number the label has to carry. The terpene total is optional chemistry.

Who is the bulletin actually written to? #

Michigan Metrc users, meaning licensed businesses on the statewide system. The shopper version is shorter. New names can print. The tests stay optional. The safety list didn't grow. The CRA Metrc page is the state's door into that system.

What should I do with a sheet from early October? #

Read it as a sheet from before the new fields existed. Camphene missing on an October 1 report isn't a hole. The effective date is November 11. Match the package tag anyway, and read whatever names that lab did report.

Where do I go for guaiol, ocimene, and terpinolene? #

Those three already have posts, and this one doesn't redo them. Guaiol is the guaiol post, ocimene is the ocimene post, and terpinolene is the terpinolene post. The links are for the chemistry. The bulletin only adds the reporting names.

The jar from us #

Divine Toke ships sun-grown Michigan flower by mail, grown in living soil, and the lab sheet is still the one for that batch. We also ship 1g pre-rolls and the 20-pack, which is 20 one-gram joints. I don't have a percent for these new names on our flower.

If you're curious what we grow, start with the jar and the package tag, then the sheet. The November 11 change is statewide. It doesn't stamp a terpene total onto every bag, including ours.

The reading lesson for the rest of the panel is the COA terpene post. Guaiol, ocimene, and terpinolene stay on their own pages, linked above. November 11 adds names a lab can report. It doesn't add a test the state can fail you on.