And then there's the worst kind of delta, the Tri-Delts.

Two months ago, Michigan’s head cannabis regulator, Andrew Brisbo, announced a new legislative priority, that the state bring Delta-8 THC and other cannabinoids under the same regulatory framework as Delta-9 THC. If a package of eight proposed bills pass the Michigan legislature this session, Brisbo and the Michigan Regulatory Agency will get to count a win.

“Some states are looking at banning this substance. That is not in the best interest of the people of Michigan nor do I think it’s good policy,” said Rep. Yousef Rabhi (D- Ann Arbor), one the co-sponsors of the package of bills in testimony before the Michigan House Regulatory Reform Committee Monday morning. “The product is out there. it’s being sold in an unregulated way. It’s being accessed by people that probably shouldn’t be accessing it. Why not regulate it like Delta-9? This is about bringing Delta-8 into that regulatory framework so that it’s licensed and tested.”

The eight bills, led by HB 4517, and sponsored by Rep. Rabhi and Rep. Jim Lilly (R-Holland), would revise the definition of Tetrahydrocannabinols (THC) more broadly so that not only Delta-9 THC is covered but any THC product the MRA determines has a potential for abuse.

[Read the state’s bill analysis.]

The legislation, which still needs “tweaks” according to Rep. Rahbi, enjoyed a warm reception at Monday’s committee hearing, including testimony in support from the Brisbo, and the state’s two leading cannabis trade associations.

“We’ve got a regulated industry,” Steve Linder, executive director of the Michigan Cannabis Manufacturing Association told Grown In after the hearing. “We need to stay ahead of anything that needs to be regulated. We don’t want to ban it. It just has to go through a processor, and be tested.”

Delta-9 Tetrahydrocannabinol is a cannabinoid found in large, naturally occurring amounts in marijuana plants and is the key ingredient that spurs cannabis sales. Delta-8, an isomer of Delta-9, or a molecule with the same number of atoms of each element but with a different atomic arrangement, is also naturally occurring in marijuana plants, but generally in trace amounts. To obtain significant amounts of Delta-8, cultivators need to distill the plant, and refine the resulting distillate, emphasizing for Delta-8 over Delta-9.

While Delta-8 has attracted a great deal of media attention, cannabis lab scientists warn that other derivatives are coming down the pipeline.

“It’s almost certain that anything available on a commercial level right now is synthetically derived through an isomerization process of converting cannibodials,” Brisbo told the committee Monday. “The agency is now engaging in research to evaluate research of the conversion process to produce commercially available products.”

“This is a good effort by the MRA to align with what the MI public health code says,” said Greg Michaud, CEO of Viridis Laboratories, cannabis testing lab. Michaud and his two founding partners spent decades operating a forensic testing lab for the Michigan State Police, and says he’s acutely familiar with legislative efforts to keep up with the illicit drug market.

“Before it was legal you’d find a lot of these home scientists trying to synthesize [cannabinoids] so it wasn’t Delta-9,” said Michaud. There are lots of home chemists trying to skirt the federal schedule. Now we’re starting to get to some really sophisticated processing of this plant. It’s unknown where it can take us.”

“I think you’re seeing more and more of that kind of sophistication. Not just marijuana, but hemp as well. These chemists that are being employed to isolate specific cannabinoids. Like CBD, but CBG, CBM. This is where the chemistry is getting to, where they’re able to isolate the specific cannabinoids, under the premise that it helps this or helps that. The things they say these cannabinoids can do.”

“THC is one of those cannabinoids. In the plant itself, the acid cannabinoid is called THC-A. When you heat it up, that’s what converts it to Delta-9. The raw plant doesn’t have Delta-9. THat’s why you burn it,” said Michaud.

Although the grey market has been aggressively marketing Delta-8 in Michigan, as well as Delta-10 in other states, Robin Schneider, executive director of the Michigan Cannabis Industry Association, says her members are not interested in producing Delta-8 products.

“We’re an industry that wants responsible regulation of any products that are being marketed as THC. [Delta-8] doesn’t reflect well on the larger industry, so it’s not a matter of wanting to make it a business opportunity,” said Schneider, who cautions that grey market chemist’s processes for producing Delta-8 are far from safe. 

“Can it pass the tests? Will the labs need a different kind of equipment? There is a much longer discussion after the bills pass to determine if the product can be brought to market by our standards,” she said.


Editor Mike is a co-founder and the editor of Grown In, a U.S. national cannabis industry newsletter and training company. His career has taken him from Capitol Hill to Chicago City Hall, from...