Mechanical Permits ensure that projects comply with the minimum standards that help safeguard life or limb, public health, property and welfare. No part of heating, ventilating, air conditioning, or refrigeration systems shall be installed, altered, replaced or repaired unless a Mechanical Permit has been obtained for the work except as exempted below.
Who may prepare Plans, Reports, Calculations, etc?
Mechanical plans and calculations shall be stamped and signed in accordance with the California Business and Professions Code. The mechanical plans and calculations shall be signed by a licensed mechanical engineer. An architect or civil engineer can sign the Mechanical plans only if he or she has designed the project as the responsible designer of the mechanical system. A mechanical contractor can sign and stamp the mechanical plans and calculations and/or Title 24 energy compliance for the mechanical system only if he/she is responsible for both the design and installation of the system. Project Submittal Requirements, Section 2
Exemptions from an Mechanical Permit: A Mechanical Permit is not required for the following heating, ventilation, air conditioning, or refrigeration repair work however, exemption from the permit requirements of the Mechanical Regulations does not authorize any work to be done in any manner in violation of the provisions of the Mechanical Regulations or any other applicable local or state regulations.