Cal. Code Regs. tit. 13, § 776
Sensing and control units shall be mounted in their normal operating positions in a circulating air cabinet for 1 h at an ambient temperature of 74 + 0, -2.8° C (165 + 0, -5° F). After the temperature conditioning, the system shall meet all the requirements of Sections 773 and 774 over a temperature range of -34 to +38° C (-30 to +100° F).
Note: Authority cited: Section 26103 Vehicle Code. Reference: Sections 24012 and 26103, Vehicle Code.