MA H171

Increases personal marijuana possession limit from 1 ounce to 3 ounces, with concentrate limited to 15 grams and THC in edibles/beverages capped at 1.5 grams total

Creates 6-year agent registration cards for marijuana establishment employees, with free cards for social equity program participants and biennial self-attestation requirements

Limits ownership control to 6 marijuana retailers, 3 medical treatment centers, 3 product manufacturers, and 3 cultivators per person/entity, with exceptions allowing up to 4 additional retailers if majority-owned by social equity or disadvantaged businesses

Permits advertising of sales, discounts, and loyalty programs within establishments, on websites, and through opt-in email marketing

Requires the Cannabis Control Commission to publish quarterly testing lab data including industry-wide and per-lab failure rates for pesticides, heavy metals, microbiologicals, solvents, and mycotoxins, plus THC levels for flower, vaporizers, and concentrates