Common Compliance Violations

Common Compliance Violations

Common Compliance Violations Sited in Michigan Cannabis Facilities Sited by AHJs

  • Improper indoor use of propane heaters or generators
  • Use only listed, vented commercial appliances
  • Propane tanks too close to structures or exits
  • Ensure 10-25 Ft. clearance (NPFA 58)
  • Unpermitted propane piping or appliances
  • All installations must be inspected and approved
  • No emergency shutoff signage or access
  • Post ‘PROPANE — FLAMMABLE GAS’ signage with clear shutoff
  • No bollard/vehicle protection
  • Install barriers for tanks exposed to traffic
  • DIY or modified appliances
  • Use only UL-listed or manufacturer-approved systems

Common Compliance Violations—Grower

  1. Improper Propane Heater Use Indoors
    1. Using unvented propane heaters without CO detectors or ventilation
    2. Using heaters in spaces not compliant with manufacturer clearances

  2. Storing Propane Cylinders Indoors
    1. Storing cylinders in grow rooms or enclosed areas, violation NFPA 58
    2. Propane Cylinders must be stored outside in ventilated cages

  3. Failing to Maintain Required Clearances
    1. Propane heaters placed too close to flammable grow materials (poly films, fertilizers)

  4. No Leak Detection / CO Detectors
    1. absence of CO alarms where propane heaters are used
    2. No routine leak testing on propane lines / regulators

  5. Using Non-Certified Equipment
    1. Using modified or homemade propane burner setups not approved by BFS
    2. Lacking UL or CSA certification on heating devices
closed-loop-extraction-diagram

Common Compliance Violations—Processor

  1. Using Open-Loop Systems Instead of Closed-Loop
    1. Open-blast extraction using propane is prohibited

  2. Operating Outside C1D1 Environments
    1. Extraction not conducted in a rated explosion-proof booth or hood
      (CRA Rule R 420.604(5), NFPA 1 & 58, BFS enforcement)

  3. Lack of Proper Gas Detection Systems
    1. No LEL sensors or interlocking systems within extraction spaces

  4. Failure to install Suppression or Ventilation Systems
    1. Missing automatic fire suppression in extraction rooms
    2. Inadequate exhaust per NFPA 1 and NPFA 58

  5. Indoor Storage of Propane Cylinders in Extraction Areas
    1. Keeping LPG cylinders inside processing rooms.

  6.  Indoor Transfilling of Propane
    1. Filling or moving propane from one container to another indoors – this is prohibited

  7. Non-Odorized Propane Without Emergency Protocols
    1. Using non-odorized propane without enhanced monitoring or SOPs

  8. Improper Propane Cylinder Handling / Storage
    1. Cylinders not stored upright, without caps, or lacking ventilation

  9. Lack of NFPA 58 Compliance Across Equipment
    1. Unapproved propane piping, fitting, and inadequate labeling/signage

  10. Inadequate Staff Training and Standard Operating Procedures (SOPs)
    1. Employees unaware of handling propane handling procedures or emergency response