Serna has successfully developed and implemented strategic plans, department reorganizations, and established leadership development programs. During his time as fire chief with Torrance, the department became an International Accredited Fire Department and retained a Class 1 ISO rating. Through his leadership, the Torrance Fire Department also established a Basic Life EMS transportation program.

Serna and his wife, Maria, have four grown children. The Serna family enjoy camping and spending time together outdoors.

Proudly serving the cities of San Bernardino, Muscoy, Grand Terrace, Mentone, and Devore, the East Valley Division is one of the most culturally diverse areas composed of neighboring metropolitan regions. This Division covers the large metropolitan area of San Bernardino accentuated by the San Bernardino International Airport, Cal State San Bernardino, National Orange Show, and Yaamava’ Resort & Casino at San Manuel. The Division presents multiple wildland-urban interface zones including the southern base of the San Bernardino Mountains that begins northeast of the Interstate 15/215 interchange and runs southeast to the Oak Glen Preserve. This division encompasses major sections of interstates 215, 10 and 210, all major throughways of commerce in San Bernardino County.

Serna will succeed Chief Dan Mejia, who is retiring after serving 35 years in the fire service. Mejia is proud to have dedicated his entire career to serving the citizens of San Bernardino County.