Testing requirements vary based on when a product is harvested or manufactured. Products harvested or manufactured between 1/1/2018 and 7/1/2018 are subjected to looser "Phase 1" testing standards, while products harvested or manufactured between 7/1/2018 and 12/31/2018 are accountable to more stringent "Phrase 2" testing standards.
For products harvested or manufactured after January 1, 2018, the date on which the product is tested or sold does not affect which testing requirements it's held to. In other words, cannabis harvested in May 2018 that's tested or sold in August 2018 is accountable to looser "Phase 1" testing standards.
For products harvested or manufactured before January 1, 2018, testing standards are determined based on when a product is collected by the testing lab. Pre-2018 product collected in May 2018 is accountable to "Phase 1" testing standards, while product collected in August 2018 is accountable to "Phase 2" testing standards.