Reference Library
Structural Engineering Resources — California
License verification, professional associations, building codes, and project guides for homeowners, architects, and licensed structural engineers in California.
Verify a License
Every licensed structural engineer in California has a license number issued by BPELSG — the California Board for Professional Engineers, Land Surveyors, and Geologists. Always verify before signing any contract.
BPELSG License Lookup →
The authoritative state database. Search by name or license number. Confirms Active/Inactive status.
CA SE Directory →
3,172 BPELSG-verified profiles. Search by county, city, and specialty. License number shown on every profile.
What to check before hiring
- • License status is Active (not Inactive, Suspended, or Expired)
- • License type is SE — Structural Engineer (not just PE — Civil)
- • Expiration date is in the future
Professional Organizations
California's structural engineering profession is organized through SEAOC and its four regional chapters. These organizations publish codes, host continuing education, and maintain member directories.
SEAOC — Statewide ↗
Structural Engineers Association of California · California
The statewide professional association for California structural engineers. Publishes the Blue Book, advocates for building code policy, and runs the annual convention.
SEAONC ↗
Structural Engineers Association of Northern California · Northern California
Serves SEs in the Bay Area, Sacramento Valley, and Northern CA counties. Maintains a firm directory and hosts continuing education events.
SEAOCC ↗
Structural Engineers Association of Central California · Central California
Covers the Central Valley and surrounding counties. Active in outreach, education, and local code adoption.
SEAOSC ↗
Structural Engineers Association of Southern California · Southern California
One of the largest SE chapters in the country. Serves Los Angeles, Orange, Riverside, San Bernardino, and Ventura counties.
SEAOSD ↗
Structural Engineers Association of San Diego · San Diego County
San Diego-focused chapter. Maintains a public "Find a Structural Engineer" referral list and hosts monthly meetings.
Codes & Standards
All permitted structural work in California must comply with the CBC. These are the primary references used by licensed structural engineers and building departments.
California Building Code (CBC 2022) ↗
California's primary building code, adopted by the state and amended by local jurisdictions. All permitted structural work in CA must comply with the CBC.
ASCE 7 — Minimum Design Loads ↗
The national standard for structural load design (gravity, wind, seismic). The CBC references ASCE 7 for seismic design categories and load combinations.
International Building Code (IBC) ↗
The model code that California's CBC is based on. Useful reference for engineers working across state lines or on federally regulated projects.
BPELSG — License Lookup ↗
The authoritative state database for all CA professional engineering licenses. Verify any SE's license number and Active/Inactive status before hiring.
When Do You Need a Structural Engineer?
In California, many projects require SE-stamped drawings to pass plan check. Here are the most common scenarios — and the specialists to look for.
Seismic Retrofit
Strengthening a soft-story apartment building, cripple wall, or hillside foundation requires a licensed SE to design the retrofit and stamp the drawings. Most CA jurisdictions require permitted work for mandatory retrofit programs.
Find seismic retrofit specialists →ADU / Accessory Dwelling Unit
ADUs require structural drawings for foundation, framing, and shear walls — especially on sloped lots or where the ADU attaches to the main structure. Most building departments require SE-stamped plans.
Find ADU specialists →Removing a Load-Bearing Wall
Any wall that carries roof or floor loads requires an SE to design the replacement beam and verify load transfer. A contractor's estimate is not sufficient — this requires stamped structural drawings.
Find a licensed SE →Home Addition or Second Story
Adding a room, story, or garage conversion requires structural drawings to meet CBC requirements and pass plan check. Foundation adequacy must also be verified for vertical additions.
Find residential specialists →Commercial Construction
All commercial buildings and most multi-family residential (3+ units) require SE-stamped structural plans. Schools, hospitals, and essential services buildings specifically require a California-licensed SE.
Find commercial specialists →Foundation Problems
Settlement, cracking, or shifting foundations require a structural assessment before any repair work. An SE can evaluate the cause, determine repair scope, and prepare drawings for the contractor.
Find foundation specialists →Post-Earthquake Assessment
After a significant earthquake, an SE can assess structural integrity, identify damage, and prepare repair specifications. Many jurisdictions offer ATC-20 rapid assessment programs staffed by licensed SEs.
Find a licensed SE →For Licensed Structural Engineers
Resources for practicing SEs — continuing education, license renewal, and professional involvement.
License Renewal — BPELSG ↗
CA SE licenses renew every two years. Check your renewal deadline and CE requirements.
SEAOC Annual Convention ↗
The primary CE and networking event for CA structural engineers. Qualifies for PDH credit.
ICC Certifications ↗
Specialty certifications for structural, seismic, and building inspection disciplines.
Claim Your Free Listing →
Your BPELSG profile is already in the directory. Claim it to add contact info, specialties, and start receiving inquiries.
Find a Licensed CA Structural Engineer
3,172 BPELSG-verified profiles. Filter by county, city, and specialty. Free to search.
Search the Directory →