#1 Cannabis Testing Lab in Arizona
Potency, Terpenes, Residual Solvents, Pesticides & Microbial Testing

Sampling Policy

Sample Acceptance Policy

This sample acceptance policy outlines the circumstances in which received samples are accepted or rejected by Level One Labs (L1), in accordance with the requirements of R9-17-404(5)(c)(ii). If any of the below criteria are not met, it may delay L1’s processing of samples. Where received samples do not meet these criteria, L1 will contact the client. If immediate client contact cannot be made, samples will be appropriately stored until the situation is clarified with the client.


L1 shall not accept submissions of marijuana or marijuana products for testing from an individual who or entity that is not allowed to possess marijuana pursuant to A.R.S. Title 36, Chapter 28.1.


Data from samples that do not meet the sample acceptance criteria are flagged and/or addressed in a case narrative, with the nature of the deviation clearly defined. Samples must have written authorization to proceed if not in compliance with this guidance.


  1. Complete Chain of Custody with the following information:
  2. Unique client sample identification
  3. Date and time of collection
  4. Description of the marijuana or marijuana product from which the submitted sample was taken, including the amount, strain, and batch number
  5. Analysis requested sampler's name, name and registry identification number of the dispensary and dispensary agent, or the qualifying patient, or designated caregiver submitting the sample to the laboratory
  6. Contact information
  7. Any additional comments
  8. Signature of relinquishing party and date and time that samples were transferred
  9. Name of lab agent receiving the sample
  10. Date of acquisition
  11. Once completed, the date of each test and date of the test results
  12. Sample temperature upon receipt should correspond to the sample matrix (i.e. ice cream should be submitted to the lab at < 0°C). State law does not require samples to be submitted within specific temperature range criteria and sample intake temperature will only be checked if it is applicable to the sample matrix.
  13. Dispensaries must submit samples as required in A.R.S. R9-17-317.01(B)(4) and (5)(a) through (d). All final products must be submitted in the retail packaging. Raw material producers, qualified patients, and designated caregivers should submit samples in containers which are fit for purpose and uphold sample integrity.
  14. Sample labels must include a unique identification written with indelible ink on water resistant labels that correspond with the Chain of Custody.
  15. Adequate sample amount must be provided pursuant to R9-17-317.01(B)(3). Dispensaries and producers shall provide no less than 16 g of sample for compliance testing. Qualified patients and designated caregivers should inquire regarding the amount of sample needed to perform desired testing prior to sample submission.
  16. Samples must be received in good condition, with no obvious signs of damage or tampering. If samples appear damaged, tampered with or otherwise contaminated, they will be rejected.
  17. If a dispensary agent transports medical marijuana or a marijuana product to a laboratory for testing, the laboratory shall require that a copy of the trip plan be provided by the dispensary before accepting the medical marijuana or marijuana product for testing.
  18. If the client (dispensary, patient, or caregiver) is aware of any pesticide treatments used in or around the respective property at which the marijuana or marijuana products were grown, produced or stored, or if any pesticide treatments (i.e. flea treatments) were used on any pets that may have been exposed to the marijuana or marijuana products submitted to the laboratory, please make a note on the Chain of Custody.


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