Accreditations and Certifications


Nationally Recognized Testing Laboratory

NRTL Approved Standards

  • UL 1995          Heating and Cooling Equipment
  • UL 1996          Duct Heaters

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Municipality / US State accreditations

Miami-Dade County



North Carolina



Energy Efficiency Accreditations

International Accreditation Service (IAS) TL-222

IAS Approved Standards


Product Standards:

ANSI A14.1 Ladders, Portable Wood
ANSI / UL 22 Amusement and Gaming Machines
ANSI / UL 50 Enclosures for Electrical Equipment
ANSI / UL 50E Enclosures
ANSI / UL 65
Electric Wired Cabinets
ANSI / UL 73
Electric-Motor-Operated Appliances
ANSI / UL 96
Standard for Lightning Protection Components
ANSI / UL 174
Household Electric Storage-Tank Water Heaters
ANSI / UL 197
Commercial Electric Cooking Appliances
ANSI / UL 207
Refrigerant-Containing Components and Accessories
ANSI / UL 231
Power Outlets
ANSI / UL 325
Door, Drapery, Gate, Louver and Window Operator and Systems
ANSI / UL 465
Central Cooling Air Conditioners
ANSI / UL 474
ANSI / UL 484
Room Air Conditioners
ANSI / UL 499
Electric Heating Appliances
ANSI / UL 506
Specialty Transformers
ANSI / UL 507
Electric Fans
ANSI / UL 508
Electric Industrial Control Equipment
ANSI / UL 676
Underwater Luminaires and Submersible Junction Boxes
ANSI / UL 710
Exhaust Hoods for Commercial Cooking Equipment
ANSI / UL 749
Household Electric Dishwashers
ANSI / UL 756
Coin and Currency Changers and Actuators
ANSI / UL 813
Commercial Audio Equipment
ANSI / UL 834
Heating, Water Supply, and Power Boilers-Electric
ANSI / UL 873 Temperature-Indicating and Regulating Equipment
ANSI / UL 984 Hermetic Refrigerant Motor Compressors
ANSI / UL 1008
Transfer Switch Equipment
ANSI / UL 1029
High-Intensity Discharge Lamp Ballasts
ANSI / UL 1081
Electric Swimming Pool Pumps, Filters and Chlorinators
ANSI / UL 1093 Halogenated Agent Fire Extinguishers
ANSI / UL 1238 Control Equipment for Use with Flammable Liquid Dispensing Devices
ANSI / UL 1310 Standard for Class 2 Power Units
ANSI / UL 1598 Standard for Luminaires
ANSI / UL 1838 Low Voltage Landscape Lighting Systems
ANSI / UL 1995 Heating and Cooling Equipment
ANSI / UL 1996 Duct Heaters
ANSI / UL 2021 Fixed and Location-Dedicated Electric Room Heaters
ANSI / UL 2108 Standard for Low Voltage Lighting Systems
ANSI / UL 5085-1 Low Voltage Transformers - Part 1: General Requirements
ANSI / UL 5085-3 Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers
ANSI / UL 60335-1 Safety of Household and Similar Appliances, Part 1: General Requirements
ANSI / UL 60335-2-40 Household and Similar Electrical Appliances - Safety - Part 2-40: Particular Requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers
ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
ASTM C209 Standard Test Method for Cellulosic Fiber Insulating Board
ASTM C303 Test Method for Dimensions and Density of Perforned Block and Board Type Thermal Insulation
ASTM C794 Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
ASTM D412 Standard Test Method for Vulcanized Rubber and Thermoplastic Elastomers Tension
ASTM D413 Standard Test Method for Rubber Property-Adhesion to Flexible Substrate
ASTM D471 Standard Test Method for Rubber-Property Effect of Liquids
ASTM D573 Standard Test Method for Rubber-Deterioration in an Air Oven
ASTM D897 Standard Test Method for Tensile Properties of Adhesive Bonds
ASTM D903 Standard Test Method for Peel or Stripping Strength of Adhesive Bonds
ASTM D1598 Standard Test Method for Time to Failure of Plastic Pipe Under Constant Internal Pressure
ASTM D1653 Standard Test Methods for Water Vapor Transmission of Organic Coating Films
ASTM D1654 Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments
ASTM D2240 Standard Test Method for Rubber Property-Durometer Hardness
ASTM D2370 Standard Test Method for Tensile Properties of Organic Coatings
ASTM D2523 Standard for practice for Testing Load Strain Properties of Roofing Membranes
ASTM D3359 Standard Test Methods for Measuring Adhesion by Tape Test
ASTM E96 Standard Test Methods for Water Vapor Transmission of Materials

ASTM E1512 Standard Test Methods for Testing Bond Performance of Bonded Anchors
ASTM F876 Standard Specification for Crosslinked Polyethylene (PEX) Tubing
ASTM G29 Standard Practice for Determining Alqal Resistance of Plastic Films
ASTM G85 Standard for Practice for Modified Salt Spray (Fog) Testing
ANSI / ARI 210/240 Unitary Air Conditioning and Air Source Heat Pump Equipment
ANSI / ASME A17.1 (Section 8.33) Safety Code for Elevators and Escalators
ANSI / ASME A17.5 Elevator and Escalator Electrical Equipment
ANSI / ASME A112.19.17 Manufactured Safety Vacuum Release Systems (SVRS) for Residential and Commercial Swimming Pool, Spa, Hot Tub, and Wading Pool Suction Systems
ANSI / ASTM D256 Determining the Izod Pendulum Impact Resistance of Plastics
ANSI / ASTM D570 Water Absorption of Plastics
ANSI / ASTM D638 Tensile Properties of Plastics
ANSI / ASTM D790 Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials
ANSI / ASTM D1621 Compressive Properties of Rigid Cellular Plastics
ANSI / ASTM D1622 Apparent Density of Rigid Cellular Plastics
ANSI / ASTM D2126 Response of Rigid Cellular Plastics to Thermal and Humid Aging
ANSI / ASHRAE 37 Rating Electrically Driven Unitary Air Conditioning and Heat Pump Equipment
ANSI / NFPA 79 Electrical Standard for Industrial Machinery

CSA-B72-M87 Installation Code for Lightning Protection Systems
NEMA 250 Enclosures for Electrical Equipment
UL 104 Elevator Door Locking Devices and Contacts
UL 775 Graphic Art Equipment
UL 60601-1 Medical Electrical Equipment, Part 1: General Requirements for Safety
UL 60950-1 Information Technology Equipment
Safety of Household and Similar Appliances, Part 1: General Requirements