ASHRAE Region X "where the desert meets the Pacific Ocean," consists of 14 Chapters and 2 Sections that cover the geographic territory of California, Hawaii, Arizona, Baja Mexico and parts of Nevada.  

Region X Chapters

ARIZONA

• Central Arizona 086

• Tucson 087

CALIFORNIA

• Sacramento 081

• Golden Gate 082 

• San Joaquin 083

• Southern California 084

• San Diego 085

• San Jose 101

• Orange Empire 105

• Sierra Delta 144

• Tri-County 155

NEVADA

• Southern Nevada 092

• Northern Nevada 126

HAWAII

• Hawaii 108

Region X Sections

• Redwood Empire Section (part of the Golden Gate Chapter)

• Western Section (part of the Southern California Chapter)