28 Pa. Code § 1171a.33 – Transporting samples.

(a) An employee of an approved laboratory, grower/processor or third-party contractor shall follow the transportation requirements under § § 1151a.35 and 1151a.36 (relating to transportation of medical marijuana; and transport manifest) when transporting a sample or test sample under this part.
(b) An employee of an approved laboratory, grower/processor or third-party contractor who transports samples from a grower/processor to an approved laboratory shall:
1. (1) Protect the physical integrity of the sample.
2. (2) Keep the composition of the sample intact.
3. (3) Protect the sample against factors that interfere with the validity of testing results, including the factors of time, temperature and any other circumstance that appears to have compromised the sample.