The state Department of Health has certified a second marijuana testing laboratory on Oahu.

Aeos Labs Inc., operated by Clinical Labs of Hawaii, got the green light today to begin testing medical cannabis from dispensaries, patients, and caregivers.

The department said it granted provisional certification following an onsite inspection, which found the lab met requirements that demonstrate its capacity and proficiency to test pakalolo products.

“The certification of Aeos Labs provides more options for dispensaries to receive accurate and valid testing of medical cannabis,” Wanda Chang, DOH Environmental Health Analytic Services Branch chief, said in a news release. “This is a critical step in providing safe medical cannabis products for registered patients.”

Aeos Labs is the state’s third pot laboratory.

Steep Hill Hawaii on Oahu was the first to receive certification in July, while Pharmlabs Hawaii LLC on Maui was certified in October.

Licensed dispensaries are required to have their products tested for potency and purity before sale.