NAICS 334512

Overview

The North American Industry Classification System (NAICS) is the federal standard for classifying business establishments to support statistical collection, analysis, and publication across the U.S. economy. Developed by the United States, Canada, and Mexico under OMB’s Economic Classification Policy Committee, NAICS replaced the Standard Industrial Classification (SIC) in 1997 and is reviewed on a five‑year cycle; the most recent vintage is 2022. ¹

NAICS 334512 covers establishments primarily engaged in manufacturing automatic environmental control devices and regulators used in residential and commercial settings and in appliances—e.g., controls for heating, air‑conditioning, and refrigeration applications. Census programs publish data for this six‑digit industry within the broader manufacturing sector using the 2022 NAICS basis. ²

See also on G2X:

• NAICS 334513
• NAICS 335314

What this NAICS covers

• Automatic heating control devices and regulators for residential and commercial use. ²
• Air‑conditioning control systems and related automatic regulators. ²
• Refrigeration control devices for building systems and appliances. ²
• Appliance-use automatic controls and regulators (e.g., for ovens or laundry equipment). ²
• Environmental control assemblies packaged for residential or commercial applications. ²
• Production of control units intended for integration into HVAC/R equipment. ²

Related NAICS and PSC codes

Cross‑references and exclusions (per NAICS manual)

• Industrial process controls are classified under NAICS 334513, not NAICS 334512. ²
• Motor control switches and relays are classified under NAICS 335314. ²
• Switches for appliances are classified under NAICS 335931, not NAICS 334512. ²

Frequently asked questions

• What does NAICS 334512 include?
  Establishments primarily engaged in manufacturing automatic environmental control devices and regulators for residential/commercial HVAC and for appliances (e.g., heating, air‑conditioning, refrigeration). These devices sense and control environmental conditions; this is a manufacturing industry focused on physical control equipment. ²

• How is NAICS 334512 different from NAICS 334513?
  NAICS 334512 covers environmental/appliance controls for buildings and consumer equipment, while NAICS 334513 covers instruments for measuring, displaying, and controlling industrial process variables. The distinction centers on residential/commercial environmental applications versus industrial process control. ²

• Are motor starters, relays, or general motor controls part of NAICS 334512?
  No. Those products generally fall under NAICS 335314 (Relay and Industrial Control Manufacturing), not environmental or appliance‑use automatic controls in NAICS 334512. ²

• Do OEM-only control units for HVAC/R equipment belong in NAICS 334512?
  Yes. Manufacturing automatic environmental control units for integration into HVAC/R equipment or appliances is within scope, whether sold as stand‑alone parts or as OEM components embedded in larger systems. Classification is based on the establishment’s primary manufacturing activity. ²

• What PSCs commonly align with NAICS 334512 for federal buys?
  Product PSC 4130 (Refrigeration and Air‑Conditioning Components) is frequently used when procuring HVAC/R components and related control devices. The final PSC depends on the specific supply being acquired and agency practice. ³

Useful resources

• U.S. Census Bureau — NAICS 2022 Industry page for NAICS 334512: official industry definition, illustrative examples, and cross‑references (use “Change Year” to view historical versions). https://www.census.gov/naics/?input=334512&year=2022&details=334512 ²
• NAICS 2022 homepage and search: browse the full structure, verify code titles, and search index entries to validate classification decisions related to NAICS 334512. https://www.census.gov/naics/?year=2022 ¹
• NAICS system guidance and FAQs (establishment‑based classification, primary activity rules). https://www.census.gov/naics/ ¹
• PSC alignment reference for HVAC/R components: Product Service Code 4130 lookup. https://psctool.us/psc/4130 ³

References

1. U.S. Census Bureau. NAICS — North American Industry Classification System (2022). https://www.census.gov/naics/?year=2022
2. U.S. Census Bureau. NAICS 2022 Industry 334512 — Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use. https://www.census.gov/naics/?input=334512&year=2022&details=334512
3. PSC Tool. Product Service Code 4130 — Refrigeration and Air‑Conditioning Components. https://psctool.us/psc/4130