Code References & Standards
Essential building codes and standards referenced in contractor licensing exams.
The IMC provides minimum regulations for mechanical systems using prescriptive and performance-related provisions. Widely adopted across the United States.
The IFGC provides requirements for the design and installation of fuel gas systems and gas-fired appliances.
NFPA publishes standards including NFPA 70 (National Electrical Code) and other fire and safety codes referenced in contractor exams.
ACCA publishes Manual D (duct design), Manual J (load calculation), Manual S (equipment selection), and other industry standards.
Note: Code requirements vary by state and jurisdiction. Always verify which codes and editions are adopted in your specific state before taking your exam.