Technical Activities
- Structural Engineers Association of San Diego (SEAOSD)
- - Past President, Board of Directors
- - Ad Hoc Committee on Seismic Zonation for San Diego
- - Sustainable Design Committee – Chairman
- Structural Engineers Association of California (SEAOC)
- - Board of Directors
- - Existing Buildings Committee, past Chairman
- - Vision 2000 Project - Development of Performance Based Seismic Guidelines
- - Performance Based Seismic Engineering ADHOC Committee
- - Post Disaster Performance Observation Committee
- - Sustainable Design Committee
- City of San Diego Board of Appeals and Advisors, 1989-1994
- City Manager's Committee on Seismic Retrofit – San Diego URM Ordinance
- CALGreen - CA Green Building Standards Code Focus Group
- International Building Code - Performance Code Committee
- National Science Foundation - Advisory Panel for Seismic Code Development Research
- ASCE Standards Committee - FEMA 356 Seismic Rehabilitation of Existing Buildings
- California Seismic Peer Review Board for State Seismic Retrofit Projects, 1998-2008
- Earthquake Engineering Research Institute
- Applied Technology Council, Board of Directors, 2001-2004
- - ATC 58 Performance Based Seismic Design Guidelines - Project Steering Committee, Project Management Committee
- - ATC 86 Integration of Sustainable Design into Performance Based Seismic Design - Technical Director