Guam lets licensed cannabis sellers use a temporary testing exemption

Guam created a temporary route for licensed cannabis businesses to sell without a qualifying local testing laboratory in 2024. The exemption required warning labels and growers’ sworn assurances about contaminants. It took effect on 20 October, ninety days after governor Lou Leon Guerrero signed it, as the island struggled to establish commercial supply after adult-use legalisation.

The laboratory requirement had become a barrier

The 2022 commercial rules required cannabis to be tested for potency and safety before consumer sales. A laboratory needed recognised accreditation or certification to operate.

Lawmakers said no island testing company could or would meet the required standard, although several businesses were trying to enter the industry. They argued that requiring a laboratory where none existed would prolong the delay.

Leon Guerrero’s signing letter acknowledged the safeguards testing provided. She also described investors’ reluctance to finance an expensive laboratory before the market’s value was known.

Licensed flower needed labels and a sworn assurance

The amendment allowed sales to consumers or other cannabis businesses while Guam lacked a laboratory with the specified accreditation or certification. It required flower or buds to identify the amount, strain, batch and harvest date, together with the licensed producer’s details.

Packages also had to warn that the cannabis had not been tested for contaminants and carry the law’s health and impairment warnings. Cultivators could deliver, distribute or sell flower or buds if they attested, under penalty of perjury, that the product met the rules’ contaminant requirements.

The change kept responsibility with licensed businesses while temporarily replacing the unavailable laboratory step with those safeguards.

Testing would return when a laboratory opened

Once a licensed laboratory opened, cannabis would again have to meet the testing rules. The board would notify licensees, giving them ten days to demonstrate compliance.

The exemption originally expired two years after the law’s enactment. Its purpose was to give a market time to develop and provide investors with evidence to justify a laboratory.

Lawmakers extended the window in 2026

In April 2026, the governor said no licensed laboratory had opened and the exemption was due to expire that July. Lawmakers extended the original period from two years to five.

They also described applicants’ difficulties securing agency clearances. The first cultivation operating permit came in June. The history of supply in Guam therefore involved several separate hurdles: testing, business licensing, inspections and permission to operate.^[1][2][3][4]