California Mechanical Code 2019

Based on the ANSI accredited American National Standard 2018 Uniform Mechanical Code, the California State amendments have been assembled into a convenient, single publication with hundreds of tables and diagrams.

Codes of practice attempt to minimize risk by specifying technical standards of design, materials, workmanship and maintenance for plumbing systems. The main aims of the code are:

  • To ensure that planners, administrators and mechanical system installers develop the required competency to ensure that the codes are applied and upheld;
  • That standards are set to ensure that mechanical assemblies, materials and technologies are safe and effective; 
  • To ensure that mechanical installations meet these standards;
  • To ensure safety and effectiveness continuously through the proper maintenance of these installations.

Click here to order a CMC from the IAPMO bookstore
Click here for a read only version of the 2019 California Mechanical Code
Click here to download 2019 California Mechanical Code - Errata (effective 1-1-2020)
Click here to download 2019 California Mechanical Code - Supplement (effective 07-01-2021)